• Similar to the silicone version, this ball stretcher is made of high quality TPR. 
• With a beefy construction, the Muscle Ball Stretcher adds a great amount of weight without the constant pain of its metal counterparts. 
• The Muscle Ball Stretcher by Sport Fucker is by far the most comfortable Ball Stretcher on the market! 
• What makes the Muscle Ball Stretcher by Sport Fucker so comfortable? The design. 
• It's nice and thick, adding a good amount of weight to your sack, without a constant pain you may have with metal ball weights.
• Material: TPR.
• Dimensions:
• Inside Diameter is 1.25 inches.
• Outside Diameter is 2.25 inches.
• Height is 1.60 inches.