Polyurethane Threaded Post Lift Stools are comfortable and durable—at an affordable price. Seat and back features improved extra soft form-molded polyurethane over a steel understructure for maximum comfort and ergonomic support. Threaded post mechanism adjusts the seat to a comfortable working height. Backrest features manual height and angle adjustment as well. Fixed, supportive foot ring rests on a five-star chrome base. Meets or exceeds ANSI/BIFMA standards.