Vinyl DURABLE OFFICE CHAIR - Featuring a sturdy five-star base and frame with armrests that easily rotate up, Attainment is a versatile modern computer chair that offers reliable support for everyday use. ERGONOMIC SUPPORT - Featuring a breathable mesh back, lower back lumbar support, and padded leatherette seat, sit relaxed in a thoughtfully designed desk chair that adjusts according to your needs. SLEEK STYLE - Refresh your office with a compelling seating choice that makes a sleek and stylish statement. Sitting atop five dual-wheeled casters, glide around any flooring surface with ease. SYNCHRONIZED TILT - Complete with a synchro tilt and lock mechanism that enables your feet to remain on the ground as you tilt backwards, Attainment also features one-touch height adjustment..CHAIR MEASUREMENTS - Product Dimensions: 26.5"L x 26.5"W x 38.5 - 42.5"H; Backrest Dimensions: 19.5"L x 20"W x 13"H; Armrest Height from Seat: 8"H; Flip-Up Arms; Maximum Chair Weight Capacity: 330 lbs. Note : To ensure proper assembly, please follow all steps provided in the installation manual (provided in pdf below)