⏩ERGONOMIC HOME OFFICE DESK CHAIR--Features adjustable headrests, 4D armrests, adjustable lumbar support and height, 4-position tilt lock, and sliding seat, are all included in one chair. COLAMY Top-end Series chairs will upgrade your comfort to a new level⏩VENTILATED 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 high-end office chair combines imported Korean fabric and high-density molding foam to provide robust support for the hips. Thickened and widened luxury seat cushions 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 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, Aluminum alloy metal 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⏩3-YEARS WARRANTY,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 product, please do not hesitate to contact us and we will spare no effort to assist you with any questions ! Click to Add Cart Now!