【Adjustable Chair】You can adjust headrest height and angle; lumbar support height and depth; armrest height; chair back tension and tilting angle; and seat cushion height to your personal most comfortable position 【Ergonomic Backrest & Headrest】Our adjustable backrest with thickened pillow can perfectly fit your spine and significantly ease the fatigue and pain of your back. Also, our double curved headrest with thickened pillow can provide more comprehensive support to your neck and head 【Comfortable Seat Cushion & Armrest】Unlike others' shredded foam, out seat is made of 3 inches high density SHAPING FOAM in one piece, which is thicker, more resilient, more comfortable and durable. Also, our unique tilted armrest with bigger and softer PU surface can provide you more comfortable arm support