Selected Material: High density shaping foam, more comfortable, elasticity resilience and service life. 1.8mm thick steel frame, more sturdy and stable. Pu Leather, skin friendly and wear resisting. Upgraded Configuration: Class 3 gas lift, durable, reliable and supports up to 300lbs. Rubber casters, rolling quietly and tested by 1000 miles rolling. Multi Function: 360 degree swivel and multi direction wheels, load capacity: 300-pound maximum weight capacity. Recline function. Between 90 to 180 degree. Rocking function: chair can rock back and forth when you adjust the knob beneath the seat. Dimension:W22”*D26.5”*H49.2-53.1” Perfect for Gaming The ergonomic gaming chair is equipped with a soft neck and a lumbar support pillow. Offering a truly comfortable seated position even after long hours of gaming or work. Specification: Tilt Locking mechanism 90 to 135 degrees angle adjuster Height adjustable gas spring cylinder Sturdy five star base Easy to move with color caster wheels Orthopedically and ergonomically designed Premium pu leather material Headrest pillow and lumbar cushion are included Load capacity up to 300 lbs Note: Be sure to install the product according to the instruction.