Swivel Mechanism Typist Gas Spindle Polyurethane Seat Standard without Arms NO Option of Arms Black Nylon Glass Reinforced 640mm Dia. Base
Polypropylene Full Seat Eezy Lock Chrome Footring 5 Star Shift Nylon Base – 700mm on Glides Heavy Duty Swivel Plate
Swivel & Tilt Mechanism with 1 Position Lock SA Gas Spindle Standard without Arms Tension Adjuster Black Nylon Glass Reinforced 630mm Dia. Base One Piece Plywood Shell
Foam on Seat: High Density Foam on Back: Medium Density
2 Lever Synchro Mechanism with 5 Position Lock SA Gas Spindle Standard without Arms Tension Adjuster Black Nylon Glass Reinforced 630mm Dia. Base Standard with Black Mesh Back
Two Piece: Plywood Seat and Steel Frame with Mesh Back Foam on Seat: High Density
2 Lever Synchro Mechanism with 5 Position Lock SA Gas Spindle Standard without Arms Tension Adjuster Black Nylon Glass Reinforced 630mm Dia. Base Two Piece Plywood Seat and Back