Are you looking for a professional, yet Fix Sinking Office Chair? Are you in search of a sturdy, trustworthy Fix Sinking Office Chair? , ! Our Fix Sinking Office Chair must meet your needs. It is one of the for you. Features -Color:Multi -Material:Stainless steel, plastic -Size: 8.00X4.50X2.90cm/3.14X1.77X1.14in -Note: Inner Diameter: Φ38-40MM -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, if the cylinder fails, this office chair clip can also fix the chair from sinking, which greatly saves the cost of buying a new chair. -This chair fixing tool is very easy to install, and quick to remove as it has a simple structure. -Suitable for a variety of chairs, you can apply them , school, office, and other places. Package list: 2 x office chair savers