Gomass Automotive Car Top Leather Steering Wheel Cover Wheel Blanket (G300 Black with Red Line) Materia:cow leather, fine car line,non slip size: outer diameter is 38cm,suitable for 14.5-15 inches, M size style: mature nice texture, fine car line, durable and strong natural rubber interior ring,and with anti-skip veins design,non-slip laser punching design,Ventilation&sweat uptake