Function: 1 Pneumatic wheels ensure that the pressure on the hub is almost the same anywhere and the hub is not easy to deform. 2. Convenient and easy to use, you can grip the wheel tightly to keep your safety. 3 The impact absorption effect of the pneumatic tire is irreplaceable and dissipates heat quickly. 4 Rubber material, wear-resisting, anti-slip, lightweight, reduce the load on electric scooter. 5 Superior sealing, high quality and durability extend tire life Specifications: Item Type: 6x1 1/46" Rubber Wheel Material: Rubber+Aluminum Weight: Approx. 424g / 14.9oz Size: Hub Diameter: Approx. 100mm / 3.9in Wheel Diameter: Approx. 150mm /5.9in Package List: 1x 6x11/4 Wheels