About This ERGONOMIC OFFICE CHAIR FOR DAILY COMFORT: Designed to support long hours of sitting, the Oline ErgoAir features a breathable mesh back and structured support to help maintain comfort throughout the workday. ERGONOMIC DESIGN WITH LUMBAR SUPPORT: Built with a contoured mesh back, integrated lumbar support, and adjustable features to promote proper sitting posture in office, home, or workspace environments. ADJUSTABLE SETTINGS FOR PERSONALIZED FIT: Customize your seating position with adjustable height, tilt lock, and headrest support. Flip-up armrests allow for space-saving convenience and flexible use. DURABLE CONSTRUCTION WITH SMOOTH MOBILITY: Made with quality materials to support up to 275 lbs. Equipped with smooth-rolling caster wheels designed for easy movement across various floor types. MODERN DESIGN FOR HOME OR OFFICE USE: Combines a clean, professional look with functional comfort, making it a practical addition to workstations, desks, or home office setups. Overview Brand : Oline Color : Black Material : Alloy Steel Product Dimensions : 25"D x 25"W x 28.5"H Size : Medium