Yearninglife Rocker mechanism for desk chair, swivel plate for office chairs, metal seat mechanism base plate plate, replacement office chair tilt & lock lever base plate mechanism (B) : Amazon.co.uk: Home &
A Helpful Guide to Office Chair Mechanisms - Office Options
Heavy Duty Office Chair Tilt Control Seat Mechanism UK | Ubuy
Eclipse III Lever Task Operator Office Chair Black With Height Adjustable Arms, Usage: 8 hours a day, Weight Tolerance: 150kg, Height, Seat and Back Adjustment Mechanism - Hunt Office UK