The Ergonomic High-Back Mesh Office Chair with Adjustable Headrest (model OFCH-ERG-001-GRY) from Bolongkeli Smart Furniture features a streamlined light gray silhouette defined by a tall open mesh backrest, fixed contoured armrests curved to match standard desk heights, and a wide five-star base fitted with dual-wheel casters. Its layout delivers a 540 mm clear width between armrests, a 240 mm tall lumbar support zone, and balanced proportions that hold an overall dimension of 680 x 680 x 1220 mm, creating a functional profile that avoids excess visual bulk. The chair’s construction prioritizes durability and long-term comfort across regular use. Its backrest is upholstered in breathable polyester mesh, while the seat surface uses woven polyester fabric over a 90 mm thick high-density polyurethane foam cushion with 45 kg/m³ density. The backrest includes 70 mm thick padding, with fabric-wrapped foam support pads mounted on rigid plastic backing. The structural frame for the back and arm supports, height adjustment lever, and five-star base are built from reinforced glass-fiber nylon or injection-molded reinforced nylon. The Class 3 safety-rated height adjustment gas lift uses chromed steel, and casters combine a polyurethane tread with nylon hubs for quiet movement. Functional features are engineered for full-shift use, supporting a maximum static user weight of 150 kg for recommended daily use of 8 hours. Users can adjust seat height across 100 mm of vertical travel via a side lever, rotate 360 degrees around the central axis, and recline the backrest 15 degrees with adjustable tension control. Dual-zone adjustable lumbar and thoracic support panels provide targeted back support, while the five-star base’s 340 mm leg radius ensures stable weight distribution, and 5 dual-wheel casters enable smooth movement across multiple floor surfaces. This chair is suited for open-plan office workstations, home office setups, conference and meeting rooms, task-focused work areas, executive private offices, and co-working spaces, pairing a neutral aesthetic with comfort for both dedicated and rotating users. For procurement, note that each unit ships in 2 cartons with a packaged gross weight of 23 kg per set, requires 40 minutes of assembly per unit, and allows 135 sets to be loaded in a 20GP container at 85% space utilization, supporting efficient large-scale deployment.