1. With gas lift for seat height adjustment.
2. Fabric cushion.
3. 5 Star bases.
4. 2" dual wheel caster.
1. Seat width: 20-1/2".
2. Seat depth: 18-1/2".
3. Back size: 19"(W) X17"(H).
4. Set height: 17-1/2" " ~21-3/4".
5. Overall Size: 20-1/2"(W) x 21"(D) x 40~44-1/4"(H).