The Light Grey Dual-Back Ergonomic Office Chair, model ERG-DB-01-LGR, is an unbranded public and workspace seating solution designed for long-duration seated use. Its cohesive light grey matte finish spans woven polyester upholstery, glass-fiber reinforced polypropylene structural framing, and nylon five-star base, creating a understated, modern visual profile that integrates seamlessly across varied interior schemes. The 700 mm diameter five-star base supports a central chrome-plated Class 4 steel gas lift, with 55 mm dual-material casters fitted at each point for stable, floor-friendly movement. Fixed curved loop armrests sit 220 mm above the seat surface, upholstered in matching fabric over a polypropylene core, while the 580 mm tall dual split backrest and adjustable headrest create a structured, supportive silhouette aligned to natural seated posture. Constructed for durable daily use, the chair features a 12 mm plywood seat support board under 60 mm thick, 45 kg/m³ density foam with 60% rebound rate, paired with 40 mm thick back foam for balanced pressure distribution. Internal structural components include 1.5 mm steel connecting plates for back support and a 2.5 mm thick black powder-coated stamped steel tilt chassis, while the upholstery is rated for 50000 Martindale abrasion cycles to withstand frequent multi-user use. The chair has a net weight of 18 kg, with a maximum recommended user weight of 136 kg. Overall dimensions measure 670 x 640 x 1100 mm, with 510 mm wide and 510 mm deep seat dimensions to accommodate a range of body types. Core functional features support ergonomic comfort across varied work styles. Pneumatic seat height adjustment delivers 100 mm of vertical travel via an under-seat lever, locking at the user’s preferred height to align with 550 mm maximum seat height requirements, including compatibility with height-adjustable sit-stand desks. Independent left and right back pads flex to match natural spinal curvature, while the backrest offers 15° of backward tilt with a single-position lock. The adjustable headrest provides 60 mm of height adjustment and 20° of tilt, locking firmly in place to support cervical posture. Full 360° swivel enables easy repositioning, and casters roll smoothly on hardwood, tile, and low-pile carpet without causing surface damage. This chair is suited for a wide range of public and work spaces: open-plan office workstations, where it delivers reliable spinal support for 8-hour daily desk work; home office study areas, where its neutral finish and compact footprint complement modern decor and fit small desk footprints; co-working shared desks, where durable construction and swivel mobility accommodate rotating users; and conference rooms, where its swivel and fixed armrests support both formal meetings and collaborative work. It performs reliably on both hard and soft floor surfaces without additional floor protection accessories. For procurement planning, note each unit ships in two cartons, with a 40-minute per-set assembly time. Coordinate receiving and storage space around the 0.264 CBM total carton volume, and confirm on-site assembly capacity to support efficient deployment across large or small seating installations.