SUPERIOR QUALITY: The wheels are made of high quality plastic, the luggage wheel replacement kit and the wheels rotate very quietly.(Note: Please check carefully whether the size in the picture matches your suitcase) SERVICE LONG-TERM: Durable and PVC wheels in exceptional black color, durable for long term use. EASY TO USE: Easy operation but great sense of achievement. Use a hacksaw to cut the post or drill out the end that connects the original wheels. WIDE USE: The mute effect of the wheels and their wear resistance, the flexibility is very good, the replacement of suitcase wheels and roller skate wheels. FEXIBLE MULTI-DIRECTIONAL WHEEL: The scratch-resistant matte surface of these wheels, durable, sleek and stylish. The wheel can turn at any angle. It's very easy and flexible to use.