If you are looking for a professional and practical office chair sinking fixing clamp, then your research is over here. That’s because our office chair sinking fix kit can meet your need. Adopted of stainless steel and rubber material, it is and practical for long time use. It will be the for you. Features -Color:Silver -Material:Stainless Steel, Rubber -Size:8.70X3.20X0.70cm/3.42X1.26X0.28in(Wrench) -Size:6.50X3.20X2.80cm/2.55X1.26X1.10in(Fixing Ring) -Inner Diameter:25-28mm -The office chair saver is made of plastic and stainless steel, stable and reliable, not easy to break. -The screw of the tool to prevent the chair from sinking can be adjusted according to different chairs. -At the same time, this office chair clip can also fix the chair from sinking, which greatly saves the cost of buying a new chair. -Use this chair saver to fix sinking chair, prevents damage caused by sinking chairs, extends lifespan. -Suitable for a variety of chairs, you can apply them at home, school, office, restaurant, cafe, and other places. Package list: 1 x Fixing Ring 1 x Wrench