<p>【High quality rubber material】Suitcase caster is integrally formed of rubber material, low cost non-oil resistant material, good water resistance, good elasticity when the hardness is less than 70 and poor compressibility when hardness is high. 【Double bearings and strong bearing capacity and wear resistance】Suitcase wheel have better wear resistance and aging resistance. With double bearings, they can rotate flexibly. A single suitcase wheel can bear 50kg, and the sound can be well matched with the shell. 【Package Contents】Suitcase Wheel Set includes: 4 wheels, 8 axles, 8 axle bolts, 8 washers, 2 wrenches. Wheel outer diameter: 50 mm, wheel width: 18mm, total wheel width: 21 mm, rolling inner diameter: 6 mm, axle: 33mm, 36mm. 【Easy to install】The suitcase wheels are easy to assemble and can be installed by yourself. When installing, pay attention to the tightness of the wheels, so that the suitcase wheels can roll better. 【Warm Notes】Buying a new suitcase is wasteful, but when the wheels break, it is a very economical way to extend the life of your suitcase. Before placing an order, please measure the wheel data of your luggage and choose the appropriate wheel size.</p>