Seven Seas Replacement Chair Mechanism - SKU 31790GKP | Heavy Duty Gas Lift Cylinder for Office Chairs, Gaming Chairs & Task Chairs | Perfect for Home Office, Gaming Setup & Workspace Ergonomics

Features

17 1/2" is hole to hole front to back--9 7/8" side to side

Knee Pivot Torsion bar mechanism

One handwheel provides adjustment of tilt action

One lever provides adjustment for seat height

Mechanism can be locked, not to tilt

Usually mounts at front edge of seat cushion

Made in North America

Meets or exceeds ANSI/BIFMA testing standards

Replaces Seven Seas, Drexel, Thomasville, Hooker Furniture, Bradington Young, Varick and more....