Designed to increase foot and ankle mobility, with a unique texture to help stimulate circulation. The 2.5-inch SKLZ(R) Foot Massage Ball is the ideal size to relieve aches and pains and target small muscle groups. Relieve and Release Designed to relieve minor aches and pains in feet Reduce chances of injury and recovery times 2.5" targets small muscles through deep tissue compression massage Texture stimulates circulation and increases mobility aiding recovery Portable & easy to use Water resistant and easy to clean