Mounting Plate Swivel Chair Base with Fixed Height

This black metal furniture part is a chair base with a four-leg star shape, a square mounting plate on top, and a central swivel column for stable support. As a swivel chair base, it rotates 360 degrees, allowing smooth turning without changing the fixed-height position. The four-leg chair base uses a star-shaped layout that spreads support evenly, while the square top plate provides a straightforward mounting surface. This fixed-height swivel base keeps the chair at one constant level, making it suitable for users who want rotation without lift or lower movement. Designed as a practical chair base, it serves as the structural foundation for seating setups that need reliable support and easy swivel motion.