1)SAFE FOR ALL FLOORS: Thanks to meticulous research and exploration of our professional technicians, which successful design to this high-quality soft polyurethane chair wheel. Compared to other chair wheel in the market, it is better protected your expensive floors, don't scratch or leave marks on any surface

2)EXTRA SMOOTH & QUIET ROLLING: Our design concept is provide comfort and relaxed chair with the help of our caster wheels, Two precision ball bearings and a wheel-shell made of soft polyurethane provide smooth, fast and quiet rolling on any floor surface, without any noise

3)UNIVERSAL FIT FOR SIMPLE REPLACEMENT: This casters wheels are designed with standard size stem. Prime replacement for nearly any chair. Just need simple 2-step to installation.

4)HIGH QUALITY FOR LIFETIME: If you don't want to spend your money and energy to replace your chair wheels every once in a while, then our products are your best choice. this wheels using rollerblade technology, Heavy-duty industrial-grade solid steel stem and frame and a strong plastic rim ensure loads up to 650 lbs, providing flexible rolling and last a lifetime