Description: 【Smooth and Quiet】: Kids ride on car wheels with pp material for a soft, quiet and smooth rolling experience. Ensures children's comfort and safety without slipping 【Floor Friendly】: Suitable for a variety of floors, such as hardwood floors, tiles and carpets, the kids twist car wheels are gentle on the ground and can be used indoors and outdoors without causing scratches 【Easy 360° Rotation】: Both the front and rear wheels are equipped with quality bearings, which can easily, stably and smoothly rotate 360° 【Easy Installation】: The package includes front wheel antislip screws and rear wheel axle covers. The installation process is simple and does not require complicated tools, making it perfect for easy replacement at home 【Universal Compatibility】: These sturdy twisting car wheels parts are designed to fit a variety of children's twisting cars, rocking cars and balance cars Specification: Material:PP   Size Chart: Diameter:8cm/3.15inch Thickness:2.4cm/0.94inch Package Includes: 2 Front Kids Twist Car Wheels 2 Rear Kids Twist Car Wheels 2 Anti Slip Screws 2 Shaft Caps Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.