Fits most 12inch wheel scooters and vehicles, like e-Bike, Mini crosser, Mini dirt bike, Kids Motor Bike, Balance Bike Valve Stem: Has angled Stem TR87 This inner tube is made of isobutylene isoprene rubber, which is better in air tightness, elastic damping and aging resistance than natural rubber new replacement 12inch 1/2 X 2 1/4inch (12.5 X 2.25)scooter inner tube. Known compatible models as following:FOR Pocket Mod, , , Bistro, Blossom, Chrissy, Daisy, , , Sweet Pea, Vapor ,And many gas and electric scooters. size:12.5 inch Material:rubber colour:black Package Contents: 2 * Inner Tube Only the above package content, other products are not included. Note: Light 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.