Item descriptions: -Outer diameter of the wheel: 45 mm; Wheel Width: 18mm; Bearing ID: 6mm; Axles: 35 mm -These wheels are made of rubber, more stable, more resistant to wear, silent and rotatable, flexible and effortless. -A very economical way to extend the life of your luggage when the wheel is damaged. The perfect solution to not having to buy new luggage -Package includes 2 wheels, 2 axles, 2 screws, 2 keys, 4 washers -Confirm that the distance between the mounting screw hole of the wheel and the bottom wheel bracket measures at least 28mm before purchase. Package: 2 spare wheels with tools Item specifications : Wheel diameter: 50 mm< br/>Wheel width: 18 mm Axle length: 6 mm Maximum load capacity: 50 kg (2 wheels) Colour: black Material: rubber and steel