Upgrades your seating with this Chair rotate Tilt Control Base, featuring tilt, rotation, and lift adjustments to ergonomic for any postures suitable with most rotate chairs, this replacement base restores stability and ergonomic flexibility while extending the life of your existing furniture Perfectly adapts to workspaces requiring dynamic seating adjustments during long hours of desk work, virtual meetings, or game meeting Ideal for home users, gamers, and professional seeking to repair or enhances executive chairs with stable tilt control functionality Crafted from strong steel with a black finish, this strong mechanism wear resistant and tool without installation for easy setups