Features Dimension - Size: 20×4"; Weight: 2.6 LB. Versatile and easy-rolling profile which adapts perfectly to any scene. Premium Rubber Material - Made of high-quality rubber material to ensure good sealing, heat resistance and durability; with shock absorption and electrical insulation properties. Tight Convex Knobs Tread Pattern - Provide it an excellent grip on all kinds of roads. Wide tire volume delivers better control, enhanced braking performance and traction on hard surfaces.