SkyPAD Gaming Arm Sleeve with Hand Support (Black/Grey, Small/Medium). For added comfort when using our mousepad. 90% Polyester, 10% Spandex. Length: 43-44 cm / 16.93-17.32 inches, Upperarm: 25-26 cm / 9.84-10.23 inches, Underarm: 18 cm / 7.08 inches