Material:metalFabric material:meshSize:49*50cmHeight:100-110cmWeight:10kgFoot material:steel footHandrail type:fixed armrestEnhanced resilient armrests with highest quality material of office chair support your arms’position with ergonomic stability,improving comfort and facilitating the optimal sitting positionThe armrests of desk chair are designed to facilitate natural and healthy posture of the user and help align the spine.The office chair's lumbar support designed as a curve along the waist line feel like hands on waist.The ergonomic office chair provides extra support for your lower backThe Work Chair implements cutting edge ergonomics to deliver a comprehensive seating experience.Standing Desk or Work Chair features a breathable mesh back for lower back lumbar support.