PREVENT DAMAGEThese carry on luggage wheel covers are made of food-grade silicone with a unique serrated pattern, which provides extra protection for the wheels, reduces noise when rolling, protects the hard case luggage wheels from wear and tear on rough surfaces and bumpy roads while traveling, and prevents moisture and other harsh elements.ANTI-SHEDDING DESIGN The suitcase wheel protector has a new upgraded anti-shedding design, like putting armor on your luggage wheels, widening the coverage of the protector, effectively preventing it from falling off when rolling, and the thickened and serrated pattern of the wheel protector is more wear-resistant, which makes your large suitcase last longer and more durable.EASY TO USE Compared to finding and replacing an entire wheel, using spinner luggage wheel covers is very hassle-free. Before purchasing, please confirm that your suitcase is double-wheeled, and the size of the wheels and the distance between the wheels and the axles and fenders meet the size requirements described above in our main picture. They are easy to put on and easy to clean. Using wheel covers to protect and extend the life of your luggage saves both money and hassle.Note: The data are all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.