The ergonomic human body support design makes the back of the person naturally bend, high-quality soft PU high back that can be locked at any angle between 90-168 degrees.Height-adjustable seats, side-rotatable and height-adjustable armrests are all used to find the most comfortable posture during work, games, siesta or relaxation. Long-term games or work no longer cause back pain or fatigue.feature:√ Larger seat cushion, wider seat back√Ergonomically thickened sponge pad with high-quality PU covering.√ Ergonomic head, back, waist support√360 degree rotation / 90 to 168 degree tilt mechanism√ Height adjustable / fully adjustable armrest√ Heavy-duty chair base with casters for higher stability√Maximum capacity: 300LBSmaterial: metalMetal material: ironFabric material: artificial leatherWeight: 26kgWhether it can be customized: NoWhether it can be raised and lowered: yesWhether it can be rotated: yesWhether to lie: yes.Five-star feet material: nylon feetArmrest type: rotating lifting armrestWhether to support ergonomics: yesWhether to assemble: assembleWhether to bring a pedal: YesService philosophy:We are confident to provide you with quality products, please rest assured to buy,if you have any questions, please feel free to contact us