Feature:1. Wall ball can also called gravity ball, fitness ball, with good durability, is a professional sports group and gym physical fitness training tool.2. Mainly used to enhance the stability and balance of the body and hand strength training.3. The design of the ball has been optimized to maximize functionality while minimizing the possibility of injury.4. Made of high quality body leather material, sturdy, durable and long service life.5. two colors with unlike weight, to meet different needs and requirements.Specification:Condition: 100% Brand NewItem Type: Wall BallMaterial: Body LeatherOptions: Green Black 4kg, Red Black 2kgQuantity: 1PCSDiameter: Approx. 35cm/13.78inchPackage List:1 x Wall Ball