What's synchro-tilt you ask? Ever adjust the back rest to recline more and both feet come off the floor? Our synchro-tilt mechanism allows the back and seat to move independently so you keep your back in healthy alignment and "keep reaching for the stars!" And with both adjustable seat and arm height, you are sure to find your ideal fit in this premium mesh office chair. The contoured seat is made of 4" high-density foam cushion to keep you comfortable during extended hours or work tasks or hobby filled weekends. Hooded double wheel casters make for smooth and quiet ease of movement.Features :- Finish: Black- Material: Mesh- Premium contract mesh chair is breathable for comfort and longevity- Adjustable height armrests- Contoured 4" high density foam seat cushion- Synchro-tilt mechanism with adjustable tilt tension control- Seat height adjustment with pneumatic gas lift- Large 27" nylon base for greater stability- Hooded double wheel casters for smooth and easy movement- Commercial Office Grade.Specifications :- Product Dimensions : 40 - 43" H x 27" W x 27" D- Product Weight : 30 lbs..