Stable Use: Executive Office Chair uses Aluminum alloy feet, formed in , stable and durable, with a load-bearing capacity of up to 300kg/660lbs. With smooth rollers, it can rotate 360°, will not damage the floor when moving. Material: The Office Chair Made of artificial board and metal, The surface layer is made of cowhide, durable and elastic. The interior of the back and seat bag is double-filled with doll cotton and high-resilience sponge. 【Ergonomic Office Chair】: This ergonomic office chairs humanizes the backrest and lumbar support, bringing the back closer to the natural curve, so that the spine is free from soreness. Helps you maintain a relaxed posture during long working hours. Easier to disperse stress and relieve muscle fatigue. 【 Use After-Sale Service】From the study room and office to the gaming room, the desk chair is an indispensable part for your daily joy. Our ergonomic chair is a top option for exceptional sitting comfort and support, no matter when or where you need to. BREATHABLE DESIGN: Our Fashion office chair is more breathable compared to normal chairs, decreases heat accumulation for a comfortable sitting. A great computer desk chair for home office, work space and conference room.