Whiidoom Finger Exerciser Ball Hand Exerciser Grip Strength Training Equipment for Hand Strengthener Physical Therapy

The shape of the sphere is more in line with the shape of the hand,the longer training,the palm also does not have the feeling of the acid tired.The design of the string is helpful to prevent the ball from falling off and thus affecting the effect of rehabilitation.Good air permeability will not make your palms sweat. Specification: Material: Emulsion Size: Diameter: 3.94 inches/10 cm,Height: 3.07 inches/7.8 cm. Package included:1 x Finger Exerciser Ball