Features: Enhances your seating comfort with Office Chair Swivel Tilt Lift Control Seat Mechanism, featuring durable steel construction, tilt/rotation/lift adjustments, and universal compatibility for executive, game, or office chairs. Engineered with a reinforced steel base plate and pre drilled mounting holes, this maintenance friendly mechanism ensures easy installation while providing long lasting stability for daily use. Ideal for home office professional, corporate employees, or game enthusiasts seek to upgrades or repair swivel chairs. Perfectly adapts to ergonomic workstations, home offices, or game setups where seat height and angles are essential for prolonged comfort. Simplifying chair maintenance with this heavy duty replacement base, designed to restoring full functionality to worn out mechanisms. Specifications: Component: Steel Size: about. 390x308mm/15.35x12.13in Package Includes: 1pc Swivel Tilt Lift Control Seat Mechanism note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.