The Gorilla Sports embossed massage ball is suitable for self-massage. It provides access to particularly difficult areas. For example, the back area on either side of the spine can be massaged by simply applying pressure against a wall or on the floor. It stands out from other massage balls thanks to its raised structure, which activates the vascularization of the massaged area. It can also be used on calves and thighs, with massage movements applied by pressure from the ball. Main features:Diameter: 10.2 cm. Circumference: 32 cm. Raised surface. Color: black. Pressure-resistant material.