Features1HOT OR COLD: Heat the stainless steel massage ball or freeze it for a different experience, freeze it to soothe muscles, heat it to help with recovery before and after a workout. 2BLOOD CIRCULATION: Massage ball enhances blood circulation and helps relieve stress and stiffness. Improves discomfort and reduces inflammation and swelling. 3MULTIFUNCTIONAL: Rolling the massage balls over the body can help improve myofascial discomfort, eliminate muscle knots, and reduce soft tissue point inflammation and tension. 4SUCTION CUP: The massage back is removable with strong suction, and can be firmly mounted on slippy sealed surfaces such as marble, tile, glass and metal. 5APPLICABLE PART: Massage roller ball is widely used on your body, designed to reduce shoulder, neck, upper back, arm, leg soreness.SpecificationItem Type: Massage BallMaterial: ABS, PVC, 304 Stainless Steel, Gel SolutionUses: Designed to reduce shoulder, neck, upper back, arm, and leg soreness. Widely used for your bodyPackage List1 x Massage Ball 1 x Instruction Manual