Upgraded accessories:The material is environmentally friendly PU material, and the connecting rod is one long short to better match the suitcase.Wide Applications:Perfect replacements for worn-out luggage suitcase wheels or as a back-up set just in case.360 and Quiet:They have a 360-degree rotating design that makes turn a lot smoother and easier to manage.And they can roll smoothly and quietly on virtually any surface,so you 't be bothered by the constant noise.Durable Material: wheels are made of Environmental protection PU and metal.They have the hard-wearing design.And resistant to dirt and corrosion for a long-lasting effect.Easy To Install:The New Wheels Were Easy To Install and Works Great: 1.Use A Hacksaw To Cut Off The Pole Which Connects The Wheels.2.Put On The New Ones With The Included Accessories.Colour:BlackMaterial:PUSize:55mmx12mm(Center Internal Diameter Is 6mm/0.23inch)Package Contents:2 * Luggage Wheels Replacement2 * axles and screws2 * wrench4 * GasketOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.