The YUXIANG Ergonomic High-Back Mesh Office Chair, model OFM-ERG003-WTBL, is a public and commercial-grade ergonomic seating solution balanced for comfort, durability, and understated modern style. Its visual form features a clean white structural frame paired with breathable woven mesh and soft upholstered surfaces, laid out to support full-body alignment from head to lower body, with a 540 mm clear width between armrests to accommodate a broad range of user sizes without restrictive bulk. Overall dimensions measure 630 x 680 x 1220 mm, with a sleek five-star base that maintains a stable footprint without crowding surrounding floor space. Construction prioritizes long-lasting performance across high-traffic settings. The backrest uses breathable polyester mesh stretched over a white polypropylene frame, paired with 70 mm of backrest padding and a 240 mm tall dedicated lumbar support zone. The seat features a woven polyester fabric cover over high-resilience foam with 45 kg/m³ density and 40% rebound rate, set atop a 14 mm bent plywood internal support board with a 90 mm thick finished cushion. The curved headrest combines mesh-covered padding with a polypropylene support structure, while armrests use rigid polypropylene supports topped with soft padded polyurethane surfaces. The reinforced nylon five-star base includes molded cross supports, fitted with dual-wheel black polyurethane casters on steel axles, a Class 3 steel gas lift with a black painted outer sleeve, and a 2.5 mm thick steel tilt-lift chassis. The chair carries a net weight of 17 kg, supports a maximum static load of 136 kg, and is rated for users up to 120 kg, with caster durability tested to 60,000 rolling cycles and gas lift performance rated to 100,000 adjustment cycles. Core functional features support flexible, comfortable use across long work sessions: pneumatic seat height adjustment via a side lever offers 100 mm of travel, full 360-degree swivel enables easy access to surrounding work surfaces, the backrest tilts to a 125-degree recline with three lock positions, 12 degrees of adjustable tilt tension, height-adjustable armrests with three locking positions, and an angle- and height-adjustable curved headrest. Dual-wheel casters roll smoothly across hard floors and low-pile carpet. This chair is suited for open office workstations supporting 8 hours of daily use, home office setups, conference and meeting rooms, and dedicated task work areas where extended focus is required, pairing well with 2.4 m executive desks. For procurement, note that each unit ships in two cartons with a packaged gross weight of 23 kg and total carton volume of 0.26 m³. Assembly takes 40 minutes per unit, and a 20GP container holds 135 sets at 85% space utilization. Ergonomic testing is recommended to confirm suitability for site-specific daily use requirements.