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In The News Si Boarders In Depth Bloopers & Production Fun Training Info Downloads Foundations Start Here Unconventional Training Traditional Lifting Firefighters & Service Industry MMA Training Traditional Sports Surf Sports Injury Prevention and Rehab Trick List Kids & Grandpa Medicine Ball Training Power Rope Ball Training Common Questions Blog- Train With Me Mobile App Find Us Events Social & Newsletters On The Map About Us Contact Us Vision and Core Values Our Story Creating Prototypes Engineers and Manufacturers Ups and Downs Picking Up the Pieces What's In A Slogan? 2016 Price Increase Shipping Site Help / FAQ Products Product Videos Buyer Guide Q & A Balance Boards Balls Rope Balls Fitness & Rehab Half Balls Resistance Bands DIY Creator Kits Clearance Narrow By Home > Products > Rope Balls > 8.5" INCH ROPE BALL | Large | 12.5 lbs / 5.7 kg | Max Strength & Core Control Alternative Views: 8.5" Large Rope Ball Ball Diameter: 8.5" Large Weight: 12.5 lbs / 5.68 kg Large size for powerful reps Perfect for: making each movement fully engaged, body extension and reaction control Full body activation to slam and repeat Heavier weight requires great core control on rebounds Great for intermediate and advanced users Short rope length: 42" / 1 m (black rope cap) Medium rope length: 51" / 1.3 m (red rope cap) Long rope length: 60" / 1.5 m (blue rope cap) Our Price: $450.00 Availability: Usually Ships in 24 to 48 Hours Product Code: PRB850 Rope Length: Short Rope 42" / 1 m (black cap) Medium Rope 51" / 1.3 m (red cap) [Add $1.50] Long Rope 60"/ 1.5 m (blue cap) [Add $3.00] Qty: Description Technical Specs Users Guide The Perfect Rope Ball Designed for Power and Durability Powerhouse Strength: 8.5" Large Rope Ball will take your strength to the next level. Harness the strength of every muscle fiber into one powerful contraction and make each rep noteworthy. This rope ball is for users needing to hit the next benchmark and produce powerhouse feats of strength. Get A Grip: You'll be able to slow down your reps and control ball momentum with your grip strength. Easily hand exchange with rotations around the body or against the wall to simulate grip strength sports that need your full body control. Simulate tow ropes, motorsports and flying over pull up bars when you need to react to the unexpected terrain trying to pull you off balance. Breaking Down The Walls: Pounding this Rope Ball against the wall is no easy task and it's time to step up and show the world what you're made of. Each rep requires full body control and will tire you out quickly. Master these moves and make the last powerful rep as great as the first. The strong rebound will force you to compress and then quickly explode with stability. It's perfect for for dynamic sports such as basketball rebounding, football linemen and jumping sports. Elysia's Notes: The concrete playground booms when I am pounding this ball. So fun to slow down my reps and make each one powerful. The intense rebound requires me to have so much body control and a solid footing. I love the sledgehammer slam with the quick overhead rebound to decompress and reverse my compressed squat. The split hand training is also my favorite set of moves as I control unique rotations from the heavy weight. Getting The Most of Our Superior Rebound: Our Power Rope Balls rebound unlike any other and creates tremendous reaction energy. The harder you slam against the wall the greater the fast rebound and eccentric muscle control with shoulder stability needed. To properly bounce against the wall you need full range of motion and to get your hand inches from the wall. Limited range prevents the middle of the ball from hitting the wall and a direct opposite rebound vs hitting the top of the ball. Get The Right Rope Length For Your Needs and Skill Level: The longer the rope the farther the weight is from your body. This creates greater force on your joints and can be difficult to control for beginners. A shorter rope may be a better starting point for beginners and those learning shoulder control. Longer ropes give you the ability to slam the Rope Balls on the ground and have more body clearance on the rebound. How To Measure: A general rule is to have the rope end at the inside of your elbow crease. This allows you to have ground clearance if doing big shoulder swings. You will have enough rope length for extra grip knots and hand wraps. Measure from the ground to the inside of your elbow. Advanced users may want a longer rope for added hand wraps or behind the back swings. User Height Suggestions: Up to 5'4" / 1.6 m: Suggested Short Rope Length 5'4" / 1.6 m to 6' / 1.8 m: Suggested Medium Rope Length Over 6' / 1.8 m: Suggested Long Rope Length Rope Lengths: Short Rope: 42" / 1 m Medium Rope: 51 / 1.3 m Long Rope: 60" / 1.5 m Power Rope Ball Product Information Video Download Our Power Rope Ball Instructions: Click Here Download Our 68 Page Information Packet That Comes With All Orders: Click Here Diameter: 8.5 inches 21.51 cm Weight: 12.5 pounds 5.6 kg Circumference: 26.6 inches 67.69 cm Rope Length: Measure from the ground to the front crease of your elbow Rope should be at elbow or slightly above to allow ground clearance for full swings Advanced users or full body slinging can use longer ropes Rope length is measured from the ground to the end of the rope Each knot takes up 4" - 6" of rope length Short rope is 42" / 1 m from the floor to the rope end. Black rope cap Medium rope is 51" / 1.3 m from the floor to the rope end. Red rope cap Long rope is 60" / 1.5 m from the floor to the rope end. Blue rope cap Comparison Ball Sizes: Volleyball: 8.4 inch diameter Adult soccer ball: 8.9 inch diameter Women's basketball: 9 inch diameter Ball Material: Solid and durable urethane construction to resist wear friction Grip texture bumps Top Rope Cap Material: Solid and durable urethane mushroom shape Two center holes for the rope Recessed rope area to protect top rope from ground contact Cap is recessed 2" into the ball Bottom Rope Cap Material: Solid and durable urethane top hat shape One center hole for the rope Cap is recessed 2" into the ball Rope Material: 7/16" dynamic sailing rope Soft on hands and easily flexible for knots 36" of rope 2" of adhesive shrink tubing protects the ends of the rope Untie bottom knot and split rope in two for hand hold variety Suggested Use:Intermediate and advanced users to swinging and rotational trainingRequires strong body control and good joint stabilityThose desiring to make powerful movements with low repsHow It Feels To Swing Around The Body:Weight is difficult to controlChallenges core control and balance especially when ball is far from the bodyOne handed moves require extreme grip and shoulder controlHow It Feels To Slam Against The Wall:Strong rebound will pull you in the opposite direction with easeOne handed moves simulate grip sports requiring strong controlConstant full body activation is needed for continuous repsHow It Feels To Slam Against The Ground:Abdominal control and activation is a must to control momentumGreat strength is required to keep reps goingOne handed moves require extreme grip and shoulder controlNot Recommended:Individuals with poor posture and core control Individuals new to swinging and rotational trainingIndividuals with poor balance Instructions Check this out! Afternoon pump from Andrew who gives us an awesome comparison and testimony on our Rope Balls. Big time thanks! #Repost @fitnessbyandrewllc with @repostapp. ・・・ A while ago I got a post from someone that asked me why I liked the @siboards rope balls instead of some of the other rope balls that are out there. So I thought I would show a quick comparison between a @siboards 12.5lb rope ball and a 10lb PowerSystems rope ball. To be clear I do like them both....but the @siboards ball is a SOLID ball and its rebound forces you to stay engaged and it allows you to work concentrically and eccentrically, in other words you will feel the slam but you will still be working against the rebound, you will simply WORK HARDER. With a hollow rope ball you will have to accelerate on the slam, however it's bounce does not force you to stay engaged. The hollow ball will at some point crack or break, and we abuse these @siboards boards and they seem indestructible. • • • #siboards #powerropeball #tornadoball #slamball #medball #coretraining #corecontrol #sportsperformance #sportsmedicine #athletictraining #fitnessequipment #shoutouts #bigthanks #surffitness #mmatraining #shoulderrehab #crosstraining #roguefitness #footballtraining #gymtime A video posted by Si Boards, Inc (@siboards) on Apr 5, 2016 at 1:21pm PDT Everybody stand back and watch! Andrew is in the gym and he is pounding the ground! Love it! #Repost @fitnessbyandrewllc with @repostapp. ・・・ The bounce and challenge on this 8.5" 12.5lb RopeBall from @siboards is SICK 😖 alternating hammer slams, single sided hammer slams and torso rotations all felt AWESOME and INTENSE!! • • • #siboards #tornadoball #medball #slamball #coretraining #corestrength #crosstraining #functionaltraining #sportsperformance #exercisedaily #exercisemotivation #volleyballtraining #footballtraining #basketballtraining #sledgehammer #beastmode #shoulderworkout #abs #ridersapp #teamoneset A video posted by Si Boards, Inc (@siboards) on Oct 16, 2015 at 1:43pm PDT A video posted by Si Boards, Inc (@siboards) on Nov 22, 2015 at 8:06pm PST A video posted by Si Boards, Inc (@siboards) on Oct 1, 2015 at 10:18pm PDT A video posted by Si Boards, Inc (@siboards) on Sep 30, 2015 at 8:29pm PDT A video posted by Si Boards, Inc (@siboards) on Sep 22, 2015 at 7:39pm PDT A video posted by Si Boards, Inc (@siboards) on Sep 11, 2015 at 7:17am PDT A video posted by Si Boards, Inc (@siboards) on Sep 3, 2015 at 8:26pm PDT Related Items SHORT ROPE | 42" in / 1 m | Users 5'4" ft / 1.65 m and Under | Replace Yearly With Heavy Use MEDIUM ROPE | 51" in / 1.3 m | Users 5'4" ft / 1.65 m to 6' ft / 1.82 m | Replace Yearly With Heavy Use 5" INCH ROPE BALL | Small | 2.5 lbs / 1.13 kg | Shoulder Warm-Up & Mobility 3" INCH ROPE BALL GRIP| For Large Hands, Grip Strength & Unique 2 Hand Holds Our Price: $30.00 Our Price: $31.50 Our Price: $150.00 Our Price: $25.00 LONG ROPE | 60" in / 1.5 m | Users over 6' ft / 1.82 m | Replace Yearly With Heavy Use EXPLOSIVE | 8.5", 6.5", (2) 5" Rope Balls | (2) 3" Mini Balls | Ultimate Core Training Package STAMINA | 6.5" & (2) 5" Rope Balls | Double Mobility & Endurance, Speed Strength Combos 6.5 INCH ROPE BALL | Medium | 5.5 lbs / 2.5 kg | Agility & Speed Strength Our Price: $33.00 Our Price: $1,000.00 Our Price: $550.00 Our Price: $250.00 Share your knowledge of this product. 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