Ergonomic Design TEMPUR foam, known for its advanced comfort, is built into the seat of this Tempur-Pedic ergonomic mid-back drafting stool. Black upholstery adds extra softness, and the mesh back provides airflow. The armrests, seat height, and back height are adjustable for a customized position. Achieve proper posture with the built-in lumbar support. Strength and Trusted Durability The five-star base of the adjustable arm Tempur-Pedic ergonomic drafting stool is durable for frequent use and long workdays. Dual-wheeled carpet casters along the base are sturdy and make maneuvering around the office easy.