Finger Strength Strengthening Trainer Pull-up Fitness Equipment

Product Information: Product Name: Arm Strength, Wrist Strength Training Ball Color: yellow Material: solid plastic soft ball +304 stainless steel Specification: 7.2/9.7cm Configuration: a pair of balls + a pair of black hooks + a pair of straps + storage bag Scope of application: indoor and outdoor horizontal bars, fitness racks, etc. Packing list Training ball*1