Item Type: A88 Porous Luggage CasterStyle: A35 BlackMaterial: PP+PETWeight: Approx.417g/14.7oz1Excellent Workmanship: Mute, wear resistant, exquisite workmanship, very suitable for luggage. 2Durable Material: Made of PP and PET materials, safe and environmentally friendly, sturdy and durable. 3Simple and Convenient: Equipped with multiple screws for installation, bringing convenience to you. 4Practical Accessory: For people who travel frequently, it is an important luggage repair accessory and practical. 5Easy to Install: Open the case, unzip the zipper, find the screw location, unscrew the screw, and then screw on the new wheels.