ITEM NAME:Solid Pull Up Ball 97mm Finger Hands Pinch Grips Trainer Forearm Biceps Exercise Description: Functional: Anti-slip grip ball and hanging strap increase forearm, grip strength, boosting endurance, climbing training and explosiveness High Quality Material: Non-slip textured spherical PU material provides maximum grip Easy to Install: Come with stainless steel hooks and reinforced straps for convenient using Without place restriction: Can be attached to any pull up bar, including door jamb, rack system pull up bars or can be used with pinch grip loading pin Specification: Material: PU, Stainless Steel, Nylon Ball Diameter: 9.7cm/ 3.82inch Strap Length: 26cm/10.24 inch Hook Length: 9cm/ 3.54 inch Package Includes: 2 Pieces Balls 2 Pieces Straps 2 Pieces Hooks SKU: DMO0001930754048152.Functional: Anti-slip grip ball and hanging strap increase forearm, grip strength, boosting endurance, climbing training and explosiveness. High Quality Material: Non-slip textured spherical PU material provides maximum grip.