TheCH06-30is the best seller of Diamond Quilted PU Gaming Chair Series. Large racing shape seat, it is particularly designed to long-time gamers/workers for ergonomics and comfort reasons. It provides removable headrest and adjustable lumbar cushions, RGB lights, up to 150 reclining degree as well as sturdy base and back constructions. PU surface and Nylon star base/ casters create soft touch and easy glide. When sitting becomes an experience, chairs sell fast!Preloaded dynamic RGB lighting effectscreates stylish gaming ambience with breathing, static, wave effects and moreBack diamond-quilted pattern design: luxurious racing seat alike experience2D Armrest: 2-direction adjustment relieves wrist and forearm stress and pressureWide Seat: matches different stature for more people getting comfortable seating experienceRemovable Headrest Pillow: for neck comfort and supportAdjustable Lumbar Support: alleviates lower back pain during long periods of sittingAdjustable Tilt Back: lean back, sit upright, or rock with built-in tilt tension lever underneath the seatPneumatic Seat-Height Adjustment: quick and easy adjustment regulated height of chair relative to the floor360 Degree Swivel Functionality: for easy maneuveringShock-Absorbing Nylon Casters: allow for great stability and mobility