Features:
Upgraded office chair saver for stop sinking can control the height of the seat, prevent repeated sinking, and can rotate the seat normally after improvement (the old plastic model cannot). Universal size fits most office chairs, within the cylinder diameter of 25-28mm(0.98-1.1 inches). After fixing, the chair can rotate smoothly and prolong the service life of the chair.
Easy installation. Start by adjusting the chair to the ideal height you want and mark it. Install the metal plate and rubber gasket, and clamp them to the lowest and fix it with screws. Use a hexagonal wrench to force the screws and secure them, try to sit and fine-tune it. It takes about 5 minutes but once done your chair will no longer drop down.
Come with an office chair sink stop and a hex wrench. Easily solve your chair sinking problem without spending more money on a new chair.
Specifications:
Material: stainless steel
Color: as shown in the picture
Size: 25-28 mm/ 0.98-1.1 inches in diameter
Package includes:
3 x Office chair savers
3 x Wrench