These are 2 pairs of scooter wheels, practical, durable, and useful. It is of professional high elasticity and high wear-resistant PU wheel, high wear resistance and good stability. And it is perfectly suitable for daily practice, recreational. Features - ColorDark Grey - Material: PU. - Size: About 10.00X10.00X2.40cm/3.93X3.93X0.94inch. - Easy install, perfect fit, roll quite, smoother, will works great in your scooter. - Perfect replacement wheels for your kids scooter with 100mm wheels. - After installing these new wheels will make a big difference in speeds and make the scooter . - It will roll faster, smoother and also quieter than ordinary wheels. - Give a smooth and stable long term riding in all kinds of ground such pavement, street, lawn, rough road or skate park etc. Package list: 4 x scooter wheels