Description：Origin: Mainland ChinaType of sports: Strength TrainingType: High Elastic Gripping BallModel Number: Grip Strength TrainerDepartment Name: UnisexTraining Site: HandProduct Size: about 11.5 * 10.5CM/4.5*4.1INCHMaterial: rubberColour(optional): black/grayWeight: about 50gProduct application: adult hand function rehabilitation training finger strength grip strength, hand muscle strength small exercise fitnessGood elasticity, good hand feel, convenient for users to grasp, finger strength training, finger hole anti-falling designIncluded:1set x Grip Strength TrainerNotes:1. Please allow slight chromatic aberration in the photo.2. Due to manual measurement, the size may deviate.