vigorpow armless mesh office chair ergonomic swivel black small computer desk chair no arms with lumbar support height adjustable task chair for adults and kids vigorpow <b>key features:</b> <br> <br>armless ergonomic office chair: <br>high density mesh backrest, strongly supportive. <br>upgraded built-in lumbar support, provide enough support for lower back. <br> <br>comfortable small desk chair without arms: <br>our desk chair padded with high resilience foam sponge, comfortable and durable. <br>desk chair seat covered by a high quality mesh cloth, long lifetime, not easy to deform. <br> <br>height adjustable task chair with no arms <br>chair seat height from floor: 17''-21.7''(43-55cm) <br>adjustable height range: 4.7'' (12cm) <br> <br>sturdy nylon base and dual casters <br>casters provide great mobility, without noisy and no scratches left on the floor. the nylon base can bear the maximum capacity up to 2500lbs, the office chair to 250lbs. <br> <br> <b>office chair dimensions:</b> <br>overall height: 33.1-37.8''h (84-96cm) <br>back size: 16.1''w x 17.3''h (41 x 44cm) <br>seat size: 18.1''w x 19.7''d (46 x 63cm) <br>seat thickness: 2.2'' (5.5cm) <br>seat height from floor: 17-21.7''h (43-55cm) <br>base size: 25.2''w x 25.2''d (64 x 64cm) <br>weight capacity: 250lbs <br> <b>attention: all dimensions are measured manually, so there might be a small deviation.</b>