Specifications BrandSportSoulProduct NameHand Grip Stress Relief BallMaterialSiliconeProduct Weight45gColorYellow OrangeSize58 44mm Features 1 This term adopts high quality material and textured surfaces and gives a fantastic and comfortable touch feeling 2 Perfect for training flexibility of fingers against stiffness and doing rehabilitation training exercising hand muscle and enhancing hand strength 3 Squeeze roll or press the ball to relieve tension and reduce stress 4 Due to its small body and lightweight convenient to carry and you can relax your hand anywhere anytime 5 Suitable for those people who are rock climbers body builders computer workers badminton and pong lovers etc 6 This product has five different colors for you to choose from and their hardness is slightly different from each other specifically they become harder in this color order Yellow OrangePackage includes 1pcs Grip BallNote 1 Please allow slight errors due to manual measurement 2 Due to the difference between different monitors the picture may not reflect the actual color of the item