Item Type: Pull up Fitness Equipment Material: PU, 304 Stainless Steel, Polyester Weight: Approx. 734g / 25.9oz Ball Diameter: Approx. 7.2cm / 2.8in Scope of Application: Indoor and Outdoor Horizontal Bar Training Package List 2 x Training Ball 2 x Quick Hook 2 x Ribbon Ring 1Good Function: Anti slip grip and suspension belt can increase forearm, grip strength, assistance, climbing training and explosive force. 2Anti Slip Design: Non slip textured spherical PU material provides maximum traction, providing you great using experience. 3No Position Limit: Pull up ball can be connected to any top link, including the door jamb, the rack system top link or can be used with the loading pin. 4Wide Applications: Pull up ball grip is a practical gym equipment, perfect for muscles and hand strengthener training, fitness, climbing and obstacle. 5Easy to Install: Climbing pull up ball is equipped with stainless steel hook and reinforcing belt, which is easy to use.