· ⏩ ERGONOMIC HOME OFFICE DESK CHAIR--The office chair ergonomic features adjustable headrests, 4D armrests, adjustable lumbar support and height, a 4-position tilt lock, and a sliding seat, all designed to enhance your seating experience. COLAMY Top-end Series office ergonomic chairs will upgrade your comfort to a new level.· ⏩ VENTILATED ERGONOMIC MESH OFFICE CHAIR--Adopting high-end breathable mesh fabric imported from Korea with great flexibility and durability, the high back office chair perfectly fits the curve of your spine and protects the cervical and lumbar spine. In addition, the lumbar support also offers well support for your back.· ⏩ PERFECT SITTING EXPERIENCE--COLAMY ergonomic office chair lumbar support comes with high elastic mesh and adjustable device to provide robust support for lumbar. Thickened and widened luxury seat cushions, high-density molding foam and 4D adjustable armrests will enhance the experience during long hours of work or intense gaming.· ⏩ SLIDING SEAT ADJUSTMENT--The seat sliding feature can offer better back support to users as it ensures that your back is correctly pressed against the back of your ergonomic desk chair. They can also help to relieve pressure from the back of the knees, as you can spread your weight across the seat’s surface area.· ⏩ HEAVY DUTY, CERTIFIED COMFORT--360-degree swivel, sturdy base, and smooth-rolling casters for great stability and mobility. BIFMA certification, more reliable and sturdy. Class 4 gas cylinder verified by SGS,maximum capacity up to 300 lbs.· ⏩ BUY WITH CONFIDENCE!--Complete customer satisfaction is our top priority! All the necessary hardware and tools are included with this mesh chair. Easy to install and ready to use in about 10-15 minutes. Should you have any questions about this office chair big and tall, please do not hesitate to contact us and we will spare no effort to assist you with any questions ! Click to Add Cart Now!