PROTECT LUGGAGE WHEELS: The luggage wheel covers can effectively protect suitcase wheels from scratches, scuffs and damage caused on uneven roads by sharp objects. Silicone luggage wheel covers ensure that your luggage remains in excellent condition and that the suitcase also looks great on every travel. Luggage wheel protectors are also small, delicate and very convenient to carry. REDUCE NOISE: These suitcase wheel covers are made of silicone material, soft, elastic, reusable and easy to clean, it's very environmentally friendly. Luggage wheel covers can reduce the noise caused by the wheels on the ground, for a peaceful and quiet travel experience. Luggage wheel protectors enhances grip, making them suitable for all weather conditions, even on rainy days. WARM TIPS: Product material: siliconeProduct outer diameter: 5.2*1.4cmInner diameter: 4.7cmUsable range: within 6.5cmInternal height: 1.2cmGeneral suitcase tires: diameter 6cm, single wheel width 1.2cm are applicable, fit on most 8 spinner wheels Luggage. The two sides of our luggage wheel covers, one thinner for the inside of the suitcase wheels, and the other thicker for the outside of the suitcase wheels, offer a more tailored fit. But please note that tires are too small or too large are not compatible. Before purchasing, please ensure that your suitcase has double wheels. EASY INSTALLATION: Using this suitcase wheel protector covers can protect luggage wheels from the outdoor environment, and the long-lasting anti-abrasion performance can also increase the life of luggage. Installation is simple, no tools required, and it won't take up a lot of time, suitable for experienced travelers and beginners alike. Luggage wheel protectors are also suitable for office dual wheel chairs. You can easily install and remove it as many times as needed. 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.