GUOYOU Blue Mesh High-Back Executive Office Chair with Headrest (model OC-MESH-HB-012) is a professional high-back executive seating solution engineered for both commercial and residential use. Its visual profile features a cohesive blue woven mesh back and matching blue woven fabric seat cushion, paired with white matte PP armrests and a polished chrome-plated steel five-star base, creating a sleek, modern aesthetic that fits varied interior design schemes. The high-back structure integrates a contoured lumbar support zone and a height-adjustable headrest with a mesh surface, delivering full upper-body coverage from the lumbar region to the cervical spine. Constructed with a durable injection-molded PP frame stretched with blue woven mesh for the backrest, the chair uses a molded polyurethane foam core for the seat cushion, finished with stitched edge detling on the fabric upholstery. Its fixed armrests pr white PP arm pads with square tubular chrome-plated steel supports welded to the inner seat frame for structural stability. The chrome-plated steel five-pronged base has a rounded edge profile, paired with a chrome-plated steel pneumatic gas lift column and black nylon twin-wheel casters with chrome mounting stems. A steel plate tilt chassis forms the core of the adjustment mechanism, connected via black plastic central hub and bushing components to the base and column. Functional features include pneumatic seat height adjustment controlled by a left-side lever, a synchronous tilt mechanism that allows a 135-degree maximum recline from the upright position with a 2:3 seat-to-back tilt ratio, and a multi-position tilt lock to secure the backrest at selected angles. The chair offers full 360-degree swivel via a precision central bearing, height-adjustable headrest positioning for cervical support, and fixed armrests for stable forearm support during typing or rest. Its five dual-wheel casters deliver stable rolling movement on both hard floors and low-pile carpet, supporting smooth repositioning while mntning static stability. This chair is suitable for a wide range of spaces, including executive private offices and management workstations where full-body ergonomic support is required for long working hours, open-plan staff workstations where breathable mesh improves r circulation during extended computer use, meeting and conference rooms where swivel functionality accommodates varied meeting postures, home office setups that demand commercial-grade ergonomic support at a moderate budget, and co-working and shared workspaces where wear-resistant surfaces withstand frequent multi-user use. For procurement planning, the chair ships flat-packed in knock-down form, with all components including the seat, backrest, base, gas lift, casters, armrests, and hardware bag included. Single-person assembly using included tools is to take 20 minutes per unit. Each carton has a gross weight of 20 kg and a volume of 0.149 CBM, with a 20ft contner loading quantity of 280 units under standard palletized loading. A 24-month warranty covering structure, mechanism, and hardware aligns with commercial-grade mesh office chair standards.