SofThread Leather: smooth, pliable seating surface with tufted stitching detail gives an upscale feel at a compelling priceTotal support: segmented padding through back and seat with built-in lumbar supportGas-lift seat height adjustment and 360-degree swivel for customized ergonomic comfortSturdy 25 5-star base with casters and 250lb weight capacityGreenGuard Certified product” The Essentials by OFM seating collection is where quality meets value. This E1007 executive office and conference chair provides an attractive alternative with its premium quality vinyl upholstery, carefully stitched and tufted for great style and comfort in equal measure. The design will enhance any office, school, or workspace decor. This mid-back chair is designed with built-in lumbar cradling support and a gas-lift seat height adjustment mechanism for exceptional ergonomic comfort. A sturdy 5-star wheeled base and 360-degree swivel makes for easy mobility. This product is GreenGuard Certified for children and schools, and is backed by the Essentials by OFM Limited Lifetime warranty.