We have four of these SitOnIt TR2 multifunction chairs available. They're used, but in very good condition. They're very comfortable, and very well built.
- Up/down
- Back tilt lock at any position
- Seat tilt lock at any position
- Seat tilt forward prevent (if seat tilt is unlocked, this lock/unlock stops or allows the seat to go all the way forward)
- Tilt Tension
- Adjustable arms
- Ratcheting back (up/down)