Blue Ridge Ergonomics WDHSO-RT-RC Wood Desk Height Stool with Round Tube Base is adjustable from 20-25 inches from the top of the seat to the floor and features 360-degree, all-around control and black, powder-coated steel base with fixed foot ring and dual-wheel, self-braking, non-marring casters suitable for hard floors in 7-ply furniture grade hardwood with natural finish.