<b>Ergonomic S-Curve Design</b> : The beautifully-shaped backrest makes the waist remain in the S-shape and the weight on the lumber disk can be distributed properly, which prevents our body from back pain and illness.<p> <b> 360 Swivel Gas Lift</b> : Durable, reliable and height adjustable 360 swivel gas lift helps you move more freely. <p> <b>Strength Adjustable Tilting</b> : Tilting strength can be adjusted without bending the waist in a seated position regardless of user's weight.<p> <b> 5 Steps Multi Limited Tilting</b> : It allows you to tilt only at the angle you set with the lever on the lower left side, allowing you to change the angle and sit comfortably.<p> <b>Synchronized Tilting</b> : Backrest and seat are tilted at a different angle to that of the starting position, helping the lumbar spine stay close to the starting position. <p> <b>Adjustable Height, Depth & Armrest </b>: These functions allow you to adjust your chair to suit your body shape or environment.<p> <b> Mesh Back</b> : The high quality polyester stripe mesh provides a comfortable seating experience with good ventilation and durability for long term use. <p> <b>Nylon Casters</b> : They are durable and mobile using engineering plastic(PA6). <p> <b>Comfort & Hygiene</b> : The seat cover can be easily seperated from the frame by using the velcro above and below. And the seat cushion provides a stunning comfort.<p> <b>Material</b> : Mesh(backrest), fabric(seat), sponge foam(armrest), PP, nylon, plastic, STEEL <p> <b>Size</b> : 26.4 x 22.4 x 38~41 inch (15.4~18.3 from the ground to the seat) <p> <b>Color</b> : Blue & Gray