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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
Sweet Mary Jane
• Robust anodised aluminium body
their swimming style and budget
Each ball measures 6
TRNR Gel Balls size-green-blue-tint-blue Sweet Mary JaneAre you looking for a fun and convenient way to improve your grip strength? The TRNR Gel Balls will have you covered. In a pack of three with a light, a medium, and a heavy resistance, they allow you to progress at your own pace. They are perfect for crushing, pinching, and finger extension exercises, targeting the flexor and extensor muscles of the hand and forearm. You can also use them for reflex exercises or even as stress relief balls. The gel
