PREMIUM QUALITY: The wheels are made of high quality plastic, luggage wheel replacement kit, and the wheels spin very quietly.LONG TERM SERVICE: Durable PVC wheels in exceptional black color, durable for outdoor use. long term.EASY TO USE: Easy operation but great sense of achievement. Use a hacksaw to cut the pole or drill the end that connects the original wheels.WIDE USE: The wheels mute effect and wear resistance, flexibility is very good, replacement wheels for suitcases and wheels for roller skates.FEXIBLE MULTI-DIRECTIONAL WHEEL: The scratch-resistant matte surface of these wheels, durable, stylish and elegant. The wheel can turn at any angle. It's very easy and flexible to use.