UtySty Office Chair Tilt Control Replacement Heavy Duty Swivel Seat Mechanism Base 5.5” Mount Plate UP/Down Lift Lever Handle for Ergonomic Gaming Computer Chairs Bar Stool Repair Accessories

Description Package Includes: 1 pcs Lift Chair Tray（black） Single handle activates cylinder height for standard 28mm/1.1in inner diameter tapered cylinders. Heavy duty chair swivel plate seat swivel base is made of high quality iron material, strong, wear-resistant, unbreakable and durable. Replacement bottom base keeps chair stable and usable; adjustable chair height helps you get a new chair. Easy to assemble and replace with a new chair in just a few minutes. Bar Chair Lift Round Rest Chassis Replacement for Furniture Bar Stools, Office Chairs, Old Chairs or Broken Chair Parts. Chair swivel base mounting plate lift bar handle for salon, game room, home, office, study, etc.