Description:Perfect for hand rehabilitation, grip training and muscle-relaxation, this product is water-proof, abrasion-resistant and highly flexible.Featuring the design of stinger balls that allows for 360 degree rotational massage, this grip ball can accurately relieve muscle pain and fatigue.It is constructed of silicone material that is wear-resistant.The length of the finger puller is 12 cm, the width is 8 cm, the height is 0.5 cm. The diameter of the hand grip ball is 7 cm.It is suitable for men, women, the elderly and teenagers. Item Name: Grip Ball SetMaterial: Silica gelFeatures: High Elasticity, Fine Workmanship, PortableSize Details:Finger Puller Size: 12cm x 8cm x 0.5cm/4.72" x 3.15" x 0.2" (Approx.)Hand Grip Ball Diameter: 7cm/2.76" (Approx.) Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes:1 x Finger Puller1 x Hand Grip Ball Perfect for hand rehabilitation, grip training and muscle-relaxation, this product is water-proof, abrasion-resistant and highly flexible. Featuring the design of stinger balls that allows for 360 degree rotational massage, this grip ball can accurately relieve muscle pain and fatigue. It is constructed of silicone material that is wear-resistant. The length of the finger puller is 12 cm, the width is 8 cm, the height is 0.5 cm. The diameter of the hand grip ball is 7 cm. It is suitable for men, women, the elderly and teenagers.