The YUXIANG MB-OFC-049 is a mid-back mesh ergonomic task office chair designed for balanced comfort and consistent performance across diverse work environments, presenting a coordinated neutral grey aesthetic that aligns with a wide range of interior design schemes. Its streamlined silhouette combines a contoured mid-height backrest with integrated fixed T-shaped armrests, creating a compact, unobtrusive footprint without unnecessary protrusions. The chair’s overall dimensions measure 670 x 620 x 1090 mm, with a 620 mm diameter five-star base that delivers stable, balanced support without occupying excess floor area. The chair is built with durable, purpose-selected materials for long-term regular use. Its backrest uses breathable grey polyester mesh stretched over a fiberglass-reinforced polypropylene frame, paired with a seat upholstered in wear-resistant grey polyester fabric over a high-density molded polyurethane foam core rated at 45 kg/m³ density with 45% rebound rate. The fixed armrests are constructed from rigid light grey polypropylene, mounted 180 mm above the seat surface. The light grey glass-fiber reinforced nylon five-star base supports a Class 3 black painted steel gas lift column, 2.5mm thick cold-rolled steel tilt mechanism plate, and black polyurethane dual-wheel casters. Performance specifications include a 136 kg maximum static weight capacity, 50000-cycle abrasion resistance for the back mesh, and 1136 kg static load rating for the base, with a 12 kg net weight per unit. Core functional features support comfortable daily use, including 100 mm of vertical seat height adjustment via pneumatic control, 12-degree backward tilt with upright position lock, user-adjustable tilt tension via an under-seat knob, 360-degree swivel, and smooth multi-directional rolling across floor surfaces. A fixed contoured lumbar zone integrated into the backrest delivers consistent lower back support to reduce fatigue during extended work sessions. This chair is well suited for 8-hour daily use at open office workstations, compact home office setups, collaborative conference rooms, high-traffic coworking spaces, and administrative staff work areas, and pairs well with a 2.4 m executive desk. Procurement teams should note each unit ships across two cartons with a 23 kg packaged gross weight and 0.26 m³ total volume, requiring 40 minutes of assembly per set; 135 sets can be loaded into a 20GP container at 85% space utilization for streamlined bulk ordering and delivery planning.