The Alvin Paragon Mesh Back Manager's Chair is designed for those who love to rock, lean back and take comfort in a plush, molded foam seat that is 3-1/2" thick x 20" wide x 18" deep. The rocking tension is easy to adjust and can also be locked into the upright position. The seat tilts automatically as the back rocks with 2-to-1 synchronization. For every 2 degrees that the back reclines, the seat automatically tilts 1 degree. It comes complete with padded armrests that are width and height adjustable with seven positions, pneumatic height adjustment from 18" to 23" and a 26" diameter reinforced nylon base with hooded casters. The tightly stretched, high-grade nylon mesh backrest is depth adjustable, 20" wide and rises 21" above the seat.