eurosports ES-8134-GR Mid-back Mesh Ergonomic Swivel Computer Office Desk Task Chair, Gray Strong 5 castor-wheel chrome base lead 360 degree swivel and weight limit: 200 lbs Comfortable chair ,ergonomically designed for comfort for those who work at desks for long periods Computer chair with thick padding for superior comfort Pneumatic seat-height adjustment for easy positioning one touch pneumatic seat height adjustment, heavy duty nylon base with dual wheel carpet casters