1.Name:Office Chair Mechanism 2. Seat height adjustable 3. Back locking 4. Tilting of seat at certain degree ,angle adjustm 1.Name:Office Chair Mechanism2. Made to accept gas lift3. Seat height adjustable 4. Back locking 5. Tilting of seat at certain degree ,angle adjustmMJ17-0034 tilt mechanism with one lever for seat height adjustment,with back forward function too.