Specification: Available Color Variant: Black / Gray /Navy / Pink Material: PP, Metal, Mesh, Plywood, Sponge Dimensions: 25" x 25" x 36"-39" Seat Dimensions: 19" x 19" Seat Height: 18"-21" Backrest Height: 19.5" Weight Capacity: 330 lbs Net Weight: 21 lbs Key Features: Ergonomic Spine Support: Designed with an S-shaped backrest and built-in lumbar support, this office chair helps promote a comfortable sitting posture and provides support during extended work sessions. Breathable Mesh Back and Cushioned Seat: The ventilated mesh back promotes airflow, while the padded sponge seat helps provide comfortable seating for home offices, study areas, and workplaces. Space-Saving Flip-Up Arms: The 90° flip-up armrests allow the chair to slide easily under desks when not in use, making it a practical choice for compact workspaces. Adjustable Comfort Settings: Customize your seating position with adjustable seat height from 18" to 21", a 90°-110° rocking backrest, and 360° swivel movement for flexible everyday use. Stable Rolling Base: Built with a sturdy gas cylinder and five-claw base, this rolling desk chair supports up to 330 lbs while providing smooth movement across your workspace. Note: Actual product color may slightly vary from the images shown due to lighting conditions during photography and individual monitor or device display settings.