|10lb 20lb 30lb 40lb 50lb 60lb|
|Two sizes : 70mm diameter and 88mm diameter|
Ergonomically design fits for all hand sizes: perfect for men, women, seniors and teens. The stress relief balls offer resistance and fills your hand. Give it a good squeeze to get it to compress.Built your hands strength up.
These stress exercise balls help promote a sense of calm, reduce stress, anxiety and can increase focus / attention. Sports such as Tennis, Basketball, Boxing, crossfit and especially rock climbing can benefit from better grip strengthener