Industrial Black Polyurethane 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 mechanism making it easy to adjust no matter where you sit and black, powder-coated steel base with fixed foot ring with stationary, non-marring glides suitable for hard floors in chemical, soil, and puncture resistant polyurethane.