Sturdy and Durable Material: The replacement suitcase casters are made of high quality rubber and metal parts, with excellent workmanship, molded in one piece, with strong load capacity, elasticity, wear resistance, shock absorption and durability for long time use. Easy Installation: We provide you with the installation accessories, which you can install by yourself, easy to install without complex tools, save time and energy. Make sure the suitcase wheels are fixed tightly for better rotation during use. Double Bearing Design: The replacement casters have a quiet effect, good load capacity and aging resistance. The double bearing design makes the rotation more flexible. You can easily replace damaged or worn wheels, the replacement casters are easy to use and slide effortlessly. High Compatibility: The outer diameter of the wheel is 50mm, the width of the wheel is 18mm, the total width of the wheel is 21mm, and the inner diameter of the bearing is 6mm, compatible with most luggage. It is recommended to measure the data of your luggage wheel before ordering and choose the appropriate wheel size. Easy Maintenance: The replacement casters are perfectly matched to your luggage and are designed for durability. The replacement casters are easy to clean, and daily maintenance can be carried out without much time or labor effort. For cleaning, the wheel parts can be disassembled.