Prevents back pain: its ergonomic backrest perfectly follows the shape of the back thanks to its reinforcement in the lumbar region and prevents all back pain and fatigue. An Ultra comfortable and resistant seat: its high-density foam, 5 cm thick, has been specially designed to support a prolonged sitting position and optimized for a long life of the chair. Upholstered armrests: the armrests in Pu (very solid) Piano Black finish are padded with foam to optimize comfort for arm rest and allow you to play for several hours without feeling tired. A robust structure: made of Pu (polyurethane), both light and very strong, the gaming e-sport chair is designed to resist wear and tear. Its class 4 "gas lift" Height adjustment mechanism has also been optimized for maximum durability with daily use. A high quality finish: its polyurethane covering is very easy to clean and is decorated with stitching and a fully embroidered logo. Highly practical: equipped with 5 Pu wheels and a "rocking chair" Seat Rocker function will give you real freedom of movement for both play and work. Technical specifications: - adjustable seat height: 40 - 52cm. - rocking-chair mode with balance system. - heavy-duty 5-wheel base. - supports up to 120 kg. - High density foam 5 cms - solid, easy-care imitation leather upholstery (a simple damp cloth will make most everyday tasks disappear). size: - seat height: 40 - 52Cms. - seat depth: 50 cms. - backrest height: 67 cm. - width of the backrest: 47Cms. - width: 60 cms. - Weight: 12 kg.