【Superior Materials】Made of silky velvet and soft foam, supported by a sturdy electroplated metal foot base, this rolling accent armchair is comfortable and durable, keeping your body cozy while sitting on it. The high-grade velvet surface is delicate, wear-resistant, not easy to shrink, and silky to the touch. 【Height Adjustable】To ensure your safety at every height, this gas lift desk chair is built with an SGS-Certified pneumatic cylinder. You can use the adjustment lever under the seat to elevate the seat freely within the range of 46-55.5cm from the ground. 【Tilt Tension Control】The tilt tension knob can help you recline on this soft chair within the angle range of 20 degrees. After the busy and heavy work, you will have complete relaxation to release stress on this office/home chair.