Is your office chair wobbling, not tilting right, or just feeling broken? Don't throw out the whole chair – just replace the tilt control mechanism! This Operitacx replacement part is exactly what you need. It's a heavy-duty, all-in-one unit that includes the swivel base plate and the tilt control mechanism with the height adjustment (lift) lever. It's made from thick, high-grade iron and features sturdy construction meant to last a long time. The rotating design has a smooth surface for easy operation. It's designed to be compatible with most standard executive office chairs, task chairs, rolling stools, and drafting stools. Installation is a straightforward DIY project: you just need to remove the old, broken mechanism from the bottom of your seat and bolt this new one in its place. No special tools are required. This fix can save you a ton of money compared to buying a brand new chair and is way more sustainable. Get your favorite chair back to full functionality with this reliable, heavy-duty replacement mechanism.