Vintage Mid Century adjustable stool, constructed to commercial standards, made by the Adjusto Equipment company - circa 1950/70's. The chair features, a bright chrome plated four star base, mounted on original wheel caster feet. The base supports an upholstered pad seat, which swivels a full 360 degrees. The curved back rest is adjustable in height as well as depth. The seat raises and lowers from 17.25" - 20.25" Total H extended 32.25" x H lowered 29" Seat H Extended 20.25" x Lowered Seat H 17.5" W 13"x D The up/down mechanism functions, but can be tricky and stubborn.