Learniture's Academic Lab Chair keeps students comfortable in the tech room, makerspace or workshop. The polypropylene seat and back is flexible to accommodate a variety of sitting positions, and the sturdy steel and nylon frame support up to 225 pounds. The seat adjusts from 21 1/4 to 31 1/2 inches to accommodate both standard- and counter-height desks and tables and a built-in footrest offers an additional layer of comfort. Five rolling casters make it easy to move the chair from one room to another.