Features: Upgrades your seating experience with this office Chair Swivel Tilt Control Base, featuring tilt, rotation, and lift adjustments to ergonomic support for any postures . Crafted from durable steel with a black finish, this strong mechanism offers wear resistant performances and tool without installation for easy setups . Ideal for home office users, gamers, and professional seeking to repair or enhances executive chairs with reliable tilt control functionality. Perfectly adapts to workspaces requiring dynamic seating adjustments during long hours of desk work, virtual meetings, or game meeting . Compatible with most swivel chairs, this replacement base restores stability and ergonomic flexibility while extending the life of your existing furniture. Specifications: Component : steel Type: double function/triple function Height: about 330mm/13inch Package Includes: 1 set Office Chair Base note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.