Characteristics and Interoperability With its ergonomic design, ALPHA GC-184 fits your back like a glove and lets your shoulders relax. Play the game, but also come out on top! Class 4 Hydraulic Piston for Lumbar Support in Alpha GC-184 Gamming Chair Angel Transfer: Angle of 135 to 180 Composition: PU Leather Dimensions: 71 * 60 * 125 cm Adjustable Height: 125-132 cm Armrest: 1 Path Shade: Black COMFORT LEVEL NEXT allows you to play for hours on end because it perfectly fits the contours of your back. ULTRA SUPPORT comes with a high-quality neck pillow to help support your back and neck while you game. Multiple-Purpose Tilt Mechanism You have complete control over the chair's suspension thanks to its multipurpose tilt mechanism. The ALPHA can be locked in an upright position or even tilted backwards. 4D Shoulders