Check the listing for details. The Juggernaut Power Pronation Supination Roller for sliding on an Olympic bar. Color: Black, Condition: New. Listed at 124.00 USD. These are sold locally as well. Inventory will fluctuate. Want more wrist and forearm strength. The Juggernaut Power Pronation Supination Roller is designed to help you improve wrist strength and forearm strength much better than your standard wrist rollers. In Armwrestling should start from the opponent's hand that we place our finger tips no matter which style we are using. Stronger the finger more effective the wrist will be, stronger the wrist more effective we will use the supinator and the pronator. Stronger the supinator more effectively you will use your bicep, stronger the pronator better forearm angle you will find to use your brachiradialis. Stronger the brachiradialis and bicep more effective upper body pressure you will apply. These are all important. Made with heavy duty pipe that slides over an Olympic bar. Grip handle is 6- in long and 2" in diameter. Comes with 1100 paracord and carabiner. The Juggernaut Power Pronation Supination Roller is ideal to be used with a loading pin but can be used with a chain around weights or kettlebells if you decide you want to get yourself some chain from the local hardware store. If you need to purchase a loading pin please check my store. Works with any kind of weight standard or Olympic when using a chain including brands like CAP, fitness gear, sports authority, YORK, Body solid, gold's gym, Troy, rep fitness, weider, valor, ethos, titan fitness, rogue and Xmark This is great for arm wrestling, CrossFit, weightlifters, rock climbers, surfers, tennis, baseball players, golfers, and other fitness areas. Thank you for looking at my auction. Please look at my other auctions for more work out equipment and grip implements. Arm wrestling, Rock climbing, Baseball, Basketball, Football, Golf, MMA, Grip Strength, Powerlifting, Weightlifting, Tibialis Raise, Calf Raise, Bicep Curl, Tri Press, Tibialis Curl Bar, Tib, Training, Cardio, Exercise, Home Fitness, Gym Equipment, Fitness Equipment, Bench Press, Squat, Deadlift, Weights, Home Gym, ATG, kneesovertoesguy, Chest, Legs, Back, Split, Shoulders, Mobility, Flexibility, Yoga, Stretching..