The rubber ring at the base of this stool is made of rubber material and has excellent silent and shock-absorbing effect. When you sit on a stool, the rubber ring can effectively absorb impact and reduce noise, allowing you to enjoy comfortable dining time. At the same time, the rubber ring also has excellent anti-slip properties, ensuring that the stool is stable and does not shake, giving you experience. Features -Color:Black -Material:Rubber -Size:50.00X50.00X0.30cm/19.65X19.65X0.12in -Diameter: 50cm -Anti-slip: The base rubber ring has super anti-slip properties and remains stable even on smooth floors, preventing the stool from sliding or tilting. -Reduce noise: The rubber material has excellent anti-friction properties, improving your dining comfort. - and anti-aging: Made of rubber, it has excellent durability and anti-aging properties, and can still maintain excellent performance after long-term use. -Easy to install: The base rubber ring fits perfectly with the stool base, which not only improves the appearance, but also effectively protects the base from wear and scratches. -Ring protector-- practical round chair ring can help stool stay in place and prevents chair from moving. Package list: 1 x rubber ring for stool