Made of durable rubber with grooved threads for better grip, explosion-proof, pressure-resistant, wear-resistant. Anti-slip lines usable in both and rainy road conditions. tires are designed for X1 Zero 8 Zero 9 VSETT 8 VSETT 9 scooters. specially made this inner hollow structure to help the scooter have better shock absorption, heat dissipation and road feel. Good recovery and elasticity keep you from blowout and tire puncture scenarios, no need to inflate or repair, real time saver, a must have for your scooter, it can last thousands of miles without any maintenance. Before installation, put the solid tire into boiling water to heat and soften, prepare petroleum jelly or soapy water for lubrication, and then install it on the hub. size: about 203 x 76mm Material: rubber colour: black Package Contents: 1 x Electric Scooter Tire Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.