Heavy Duty Butterfly Mechanism Long-Lasting Office Chair Mechanism with Lever Stable Hardware Sturdy

Core Identity: This premium replacement hardware is designed to restore or upgrade your seating setup, serving as a sturdy foundation for standard office and gaming chairs. Primary Function: The advanced chair mechanism allows for smooth height adjustments and secure positioning, featuring a three-stage locking structure for customized comfort. Special Features: Engineered with a butterfly mechanism design, this component includes a convenient side control lever and a central mounting socket for seamless integration. Key Benefits: This heavy-duty chair base mechanism is constructed from thickened iron plate with welded joints, offering exceptional durability and a reliable tilt and lock function. Purpose & Fit: Specifically built as a tilt mechanism to replace worn-out parts, it features a standard installation hole spacing of 148 mm by 200 mm and an overall height of 140 mm.