25 years experience in rubber band strength training made by the same factory in sri lanka that made the original jump stretch flex bands. No bonding, molding or seams are used. Bands are built in layers on mandrels with no seams for potential break.
25 years experience in rubber band strength training made by the same factory in sri lanka that made the original jump stretch flex bands. No bonding, molding or seams are used. Bands are built in layers on mandrels with no ...
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