Product packaging: You will receive 8 sets of black stroller wheels, 4 with a width of 14 cm, suitable for wheels with a diameter of about 25 to 36 cm, and 4 with a width of about 12 cm, suitable for wheels with a diameter of about 18 cm. 20 cm, to meet your needs. Product material: The stroller wheel cover is made of durable Oxford cloth, dustproof and waterproof, which effectively prevents tire wear or damage. It is a practical accessory for strollers. Anti-slip and anti-shock: The stroller wheel cover can increase the friction between the tire and the ground, provide better grip, reduce the risk of wheel slipping and sliding, and provide a smoother and more comfortable riding experience for your baby. Easy to clean: Oxford cloth stroller wheel covers are very easy to clean. Simply wipe with a damp cloth to remove surface stains, so parents can easily keep their stroller tires clean and tidy when needed. Easy to install: The large wheel cover can be installed directly, no tools required. Small wheel covers can be placed and pasted. The wheel cover can be easily installed and removed. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.