7.2mm/97mm Pull Up Balls Cannonball Grips for Finger Trainer Strength Training Arm Muscles Exerciser

Description: Name: Pull-ups Balls Material: solid PU + 304 stainless steel (ball) / nylon (strap) / steel (hook) Configuration: 2 handballs + 2 straps + 2 steel Carabiner Size (ball): Large (diameter 97MM) / medium (diameter 72MM) Dimensions (strap / steel hook): strap (total length 260mm) / steel hook (total length 90mm) Package list: 1*Pair of Pull-ups Balls Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.