balmstar Ergonomic Office Chair, Home Office Desk Chair with Adjustable Headrest & Lumbar Support, Swivel High Back Computer Chair, Breathable Mesh Chair, PU Silent Wheels, Flip-Up Arms (Onyx Black) - 669A

• ✔️【Ergonomic Office Chair】The newly upgraded Balmstar ergonomic office chair is made of new composite aluminum alloy and environmental grade high temperature resistant material, adjustable backrest tension and 45° tilt high back computer chair, providing multi-angle support points (head/back/hip/hands). Double lumbar support can give your back enough support to effectively prevent cervical spondylosis and help prevent back strain and muscle fatigue. ✔️【High-Density Breathable Mesh & Cushion】The backrest and headrest are made of flexible, high-quality, non-patterned, breathable polyester mesh that allows air to flow freely to keep you cool and comfortable at all times. Stain-resistant & skin-friendly 3D air mesh task chair. The aerospace material's high-density shaped cotton-filled seat cushion resists deformation and provides foam-like comfort to balance softness, durability and support to reduce pressure on your hips and tailbone. ✔️【Protect Your Cervical Spine & Strengthen Your Core】Ergonomic office chair with adjustable height and angle to take the strain off your neck. Find the ideal support - whether you're writing at your desk, looking at your monitor, or relaxing against the back of your chair. Adjustable tilt allows you to properly align your sacrum and ensure even muscle development in your back, sides and core, while it keeps your pelvis in a neutral position to prevent heteromorphic posture problems. ✔️【Ultra Sturdy Base and Load Bearing】The five-legged base is made of pure iron, which makes this multifunctional breathable mesh office chair have better weight bearing, close to 20 inches model, the maximum load can reach an amazing 450 pounds, no matter what kind of body size, it can easily carry. The upgraded air lift is SGS and BIFMA certified, strengthens the overall frame, and utilizes aerodynamics to make it stronger and more comfortable to sit on. ✔️【Easy Assembly & Quality Assurance】Installation is in 7 steps, all parts are in the package, our home office desk chairs can be installed in 15 minutes.Balmstar office chairs are the best gift for yourself and your friends, the perfect computer chair, study desk chair. All Balmstar computer office chairs come with a 5-year warranty and replacement service. Please contact us directly for any after-sales questions about products, and we will get back to you within 24 hours.