The Mid-Back Ergonomic Mesh Office Task Chair (model MESH-ERGO-TASK-01, unbranded) features a streamlined, professional matte black unified design with balanced, space-efficient proportions. Its open mesh backrest creates a light visual profile, while the contoured seat and structured five-star base deliver a grounded, functional silhouette suited to mixed work environments. Constructed for sustained daily use, the chair pairs a high-tenacity breathable nylon mesh backrest with a cold-cured high-resilience molded polyurethane foam seat, upholstered in woven abrasion-resistant polyester fabric. The structural frame, armrest supports, and 3mm wall thickness five-star base are built from reinforced glass-fiber nylon, with soft-touch polyurethane padding on armrests. An SGS-certified Class 3 chrome-plated steel gas lift column connects the seat to the base, fitted with dual-wheel polyurethane casters over nylon hubs. The mesh upholstery carries a 50000 Martindale abrasion resistance rating, the casters hold a 60000-cycle rolling durability rating, and the five-star base supports a 1136 kg static load, with a maximum recommended user weight of 125 kg. Core ergonomic functions include pneumatic seat height adjustment with 140 mm vertical travel, controlled via a right-side lever that locks at any selected height. The multi-position tilt mechanism offers 3 lock positions, with an under-seat rotary knob to adjust tilt tension to match user weight. Height-adjustable armrests provide 80 mm of vertical travel with 5 preset lock positions to support proper elbow alignment, while the integrated contoured lumbar support flexes with user movement to maintain spinal alignment. A waterfall seat edge reduces pressure on the back of the thighs during extended sitting, and 360-degree swivel paired with omnidirectional casters enables smooth, mark-free movement across hard floors and low-pile carpet. This chair is well-suited for open-plan office workstations, where it pairs with standard 760 mm desk heights for all-day seated work; its compact footprint and quiet casters also fit home office study spaces. The consistent black finish aligns with professional meeting and conference room aesthetics, while customizable adjustments adapt to private office and cubicle users across diverse height ranges. Its robust, hardwearing build suits high-turnover co-working and hot-desking environments, where caster mobility supports quick repositioning between workstations for rotating users. For procurement planning, note each unit ships in 2 cartons, with a packaged gross weight of 23 kg per set and reference assembly time of 40 minutes per unit. A 20GP container holds 135 sets at 85% space utilization, and the chair’s neutral, unbranded design supports flexible integration with existing furniture schemes without clashing with established decor.