4 Set Luggage Case Replacement Wheel Axles Deluxe Repair Tool, 2 Sets 20Mm & 2 Sets 15Mm 4 Set Luggage Case Spare Wheels: 2 Set 20mm & 2 Set 15mmThis paragraph Luggage Trolley Cover Leather Luggage Mute Damping Wheels, Wheels Wear Mute Flexible, Easy Access. Single load 60kg, there is no phenomenon, calm and flexibility are completely safe for buyers to use. Features: wear, mute, load capacity, double bearing, rotating flexible, shifting effort, effortless, than the original luggage wheels are easy to use. The buyer needs to measure the following data to know what size is suitable for the wheels. Measurement of original wheels with an outer diameter (wheel size). The inner width of the measuring wheel groove (the width of the total installed width). Through a screw with a rivet to measure the length of the wheel (excluding the nuts at both ends)Measured by the thickness of the tube with the rivet of the wheel (i.e. the width of the bearing hole)Color: BlackMaterial: Metal + Rubber Size: rubber OD: 50mm thickness: 20mm and 15mm Ball bearing bore: 6.1mm Package Contents: 4 x Wheels6 x Rear Axles4 x Rear Axles Bolts8 x Washers4 x WrenchesOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.