Item Descriptions: - Wheel Outer Diameter:45mm; Wheel width: 18mm; Bearing ID: 6mm; Axles:35mm -These wheels are made of rubber, more stable, more wear-resistant, quiet and rotating, flexible and effortless. -A very economical way to extend the life of your luggage when a wheel is damaged. Perfect solution for not having to buy new luggage -Package includes 2 wheels, 2 axles, 2 screws, 2 keys, 4 washers -Please confirm that the distance between the mounting screw hole of the caster and the lower caster bracket is at least 28 mm before purchase. Package: 2pcs Replacement Wheels with Tools Item Specifications: Wheel diameter:50mm Wheel wide:18mm Axle length:6mm Maximum load capacity:50kg (2 wheels) Colour: black Material: rubber and steel