Ergonomic Mesh Office Chair with Adjustable Lumbar, High Back Desk Chair 300lbs, 4D Flip Up Arms, 3 Level Tilt Backrest for Long Work

Support long workdays with this office chair engineered for  sitting sessions of 8 hours or more. Designed as a high-back ergonomic desk chair. this model accommodates users from 5'5" to 6'2" with a suite of adjustable features.    The lumbar system offers 8 micro-adjustment levels across a 2-inch range. targeting the lower spine region to promote even weight distribution and reduce pressure buildup during extended desk work. The seat measures an oversized 19.69 inches deep    by 20 inches wide and is crafted from proprietary Aerovith mesh. which allows continuous airflow to keep you cool while increasing support surface area. A 3D headrest adjusts in both height and depth to provide customized neck support. The backrest    reclines and locks at three angles: 105 degrees for focused work. 120 degrees for relaxed tasks. and 125 degrees for short breaks. Flip-up 4D armrests allow you to move the chair closer to your desk or tuck them away when not in use. The reinforced    frame supports up to 300 lbs (with a base rated for 400 lbs). resting on a heavy-duty stainless steel undercarriage. PU casters roll smoothly over carpet and hard floors without marking. The pneumatic height adjustment mechanism operates smoothly    and holds position reliably. This computer chair is suitable for home offices. corporate workstations. or gaming setups.SpecificationsProduct Type: Ergonomic Mesh Office Chair / High Back Desk ChairWeight Capacity: 300 lbs (frame). base rated for 400 lbsUser Height Range: 5'5" to 6'2"Lumbar Support: 8-level micro-adjustable (2-inch range)Seat Dimensions: 19.69" D x 20" WSeat Material: Aerovith breathable meshHeadrest: 3D adjustable (height + depth)Backrest Recline: 3 locking positions (105°. 120°. 125°)Armrests: 4D flip-up designCasters: PU wheels (floor safe)Base Material: Heavy-duty stainless steelAssembly: Required (tools and instructions included)