Yaheetech Ergonomic Office Chair Mid Back Computer Chair Mesh Desk Chair with Lumbar Support Armrest Executive Rolling Swivel Adjustable Task Chair for Adults, Grey

【Breathable Mid-back Design】Featuring densely knitted mesh backrest, this mesh office chair allows better airflow, accelerating heat and moisture dissipation. Mid-back design supports your spine's natural curve and protects your lower and middle back as it prompts you to sit straight. 【Larger Seat for Optimal Comfort】In this model, we upgraded the seat size, measuring 52.5cm/20.7’’ (width) by 51cm/20’’ (depth), and 7cm/2.8’’ thick, to provide you with a softer and larger sitting area. 【Reclining Office Chair】By simply pushing the lever or pulling it out, this mesh office chair can be tilted and leaned backward or locked in place for your various sitting positions. A tilt tension control knob under the seat is equipped to adjust the recline angle. 【Robust Chair Construction】This mid-back office chair is constructed of hard-wearing nylon mesh, durable star base, solid rolling casters and SGS-certified gas cylinder. It has passed BIFMA X5.1 Test and is recommended for office use for customers under 300 lbs. 【Star Base & 360 Degrees Wheels】Twisting and turning about is integral within the office. So we adopt a stable star base and furnish it with 5pcs 360-degree swivel wheels, ensuring fluent and quick movement and keeping up your quick pace of work.