Ergonomic office chair, Breathable High-Back Mesh Desk Chair with Adjustable Lumbar Support, 3D Armrests, Tilt Function and 360 Rotating Wheels Features ??ERGONOMIC DESIGN??The S-type backrest designed by imitating the human spine curve, which effectively supports the back and relieves pressure. The headrest with a 43cm wide cambered surface can fully support the cervical spine, correct for health, release brain fatigue, and inspire new inspiration, allowing you to fully enjoy sitting while working or resting. ??BREATHABLE MESH FABRIC??This mesh office chair is made of high-quality special mesh fabric, featuring breathable, comfortable and durable, which can circulate the back air and keep cool, so you won't afraid at all of the summer sultry. The concave waterfall cushion can effectively reduce the pressure on the hips and legs. This desk chair is worth purchasing one for yourself, if you need to sit on the office chair for a long time. ??MULTIFUNCTIONAL ADJUSTMENT??This ergonomic office chair equipped with 3D armrests, which can be adjusted front, back, left and right. The PU material of armrests with a delicate touch relax arms and shoulders, which can effectively prevent carpal tunnel problems; adjustable height waist pillow provides more powerful support for the lumbar; the multifunctional mechanism with adjustable tres levels include locking back ??SOLID FOUNDATION??Mechanical steel multi-function mechanism made with high technology standards; BIFMA certified four-stage gas spring; 350 aluminum alloy chair legs tested to 1136 kg static pressure; smooth, quiet, and scratch-free nylon wheels suitable for hard floors, carpets; all parts passed SGS testing to ensure safety and stability. ??PREMIUM SERVICE??This executive office chair has a 1-year warranty. If you have any quality problems, please contact us immediately, we will provide you with a 100% satisfactory solution. Besides, this best office chair comes with clear instructions and a full set of assembly tools, so don't worry completely. Specification Colour: Black Product Dimensions: 70 x 61 x 120 cm; 17.7 Kilograms Primary material: Nylon Material composition: Mesh Type of wood: Nylon Style: Ergonomic 3D Armrest Seat height: 5.5 Centimetres Shipping weight: 8.3 Kilograms Package 1 x Ergonomic office chairWe accept Change of Mind returns for 14 days after you have received the item in cases where you have changed your mind or made an incorrect purchase and wish to return the product. This also applies to orders cancelled when the item has already been dispatched from our warehouse. The item must be in a re-saleable condition to qualify for a change of mind refund. Deductions may apply including Initial and Return Shipping, as well as restocking fee of 20% of the product price Delivery excludes the following postcodes:2880-2889, 5201-5749, 4309-4453, 4580-4693, 4454-4499, 4694-4802, 4804-4805, 9920-9960, 4803, 4806-4999, 9961-9998, 2648, 2715, 2717-2719, 2731-2739, 3221-3334, 3342-3349, 3351-3352, 3357-3426, 3444-3688, 3691- 3749, 3812-3909, 3921-3925, 3945-3974, 3979, 3984-3999, 2264-2281, 2311-2484, 2487-2499, 2533-2554, 2575-2599, 2621-2639,2642-2647, 2649-2707, 2710- 2714, 2716, 2720-2730, 2787-2879, 6215-6700, 6701-6797, 7020-7049, 7054, 7109-7150, 7155-7171, 7173-7247, 7255-7257, 7330-7799If your postcode is within the above ranges then please contact us for a postage quote.