Function: 1 . Material: Using high-quality PP and PET materials, the luggage swap wheels are safe and environmentally friendly, strong and durable. 2. High performance: with perfect workmanship, the swivel wheel of the suitcase is silent, wear-resistant and practical, very suitable for the maintenance and replacement of luggage wheels. 3. Easy to install: Easy to install, just open the cover, unfasten the zipper, find a place for the bolt, unscrew the bolt, and then attach the new wheel. 4. Complete Screws: Comes with multiple screws for easy installation and convenience. 5 . Perfect replacement: great accessories to upgrade your luggage or suitcase, helping to improve its efficiency and service life. Specification: Item Type: Luggage Wheels Product type: A23 small black one pair Material:PPPET Product color: black Total Height: 9.3 cm / 3.7 inch Interface length: 9.6 cm / 3.8 inch Interface Width: 9.2 cm / 3.6 inch Bottom aperture: 4.6 cm / 1.8 inch Bottom aperture: 3.3 cm / 1.3 inch Wheel diameter: 5.0 cm / 2.0 inch Wheel Width: 1.4cm / 0.6in Product Weight: Approx. 271g / 9.6oz Package List: 2 x luggage wheels 8 x screws