Professional Series 1500TF Mesh Chair. This chair has been used simply for couple days and is very comfortable for too long periods of sitting time. It is weight rated around 250 lbs. based on 5-10 hours useful each day. Here is the second Staples office chair I’ve had, and this one is more preferable. The seat pan is adjustable the lumbar support shape works perfectly. It’s some great adjustments available, that’s important for me that i’m only 5’2″. Optimistically, the gas/pneumatic height adjustment will last much longer as opposed to one on my previous Staples chair (below 24 months). I aquired the assembly package and am Happy Used to do. The guy knew what he was doing coupled with the chair put together in a really small amount of time. Best office chair longer periods of sitting comfortable, well-made along with a great value. The cushion seat and adjustable lumbar back support work best options that come with the chair. Also the chair seat adjusts as a result of a height that’s below most chairs which will work for me since I have short legs. Ergonomic back contour for functional support and magnificence. Height and weight activated single mechanism control.