The High-Back Gray Upholstered Executive Swivel Chair with Polished Aluminum Base presents a formal office silhouette in restrained gray, tailored for managerial and professional settings. Its tall upholstered back, padded seat, and fixed padded arms create a structured executive appearance, while polished die-cast aluminum arm supports and a five-prong base add a refined metallic contrast. Black twin-wheel casters and a central chrome gas lift complete the visual composition. The clear width between armrests is 540 mm, and the chair occupies a 680 mm footprint, supporting placement without overwhelming a private workstation. Construction combines upholstered comfort with durable metal components. The seat and back use a gray smooth leather-look surface with tailored edge stitching, assembled over a 12 mm molded hardwood-composite seat board and contoured back shell. The seat cushion features 90 mm high-resilience polyurethane foam at 45 kg/m3 density and 40 percent resilience, while the backrest uses 70 mm molded polyurethane foam at 35 kg/m3 density and 35 percent resilience. The 240 mm lumbar support zone reinforces the high-back design. Arm caps are upholstered in matching gray material over 30 mm polyurethane padding and mounted on polished die-cast aluminum frames. The five-star base has an average 3.0 mm wall section. Seams use polyester bonded thread with 8 stitches per 25 mm, and the gray face material carries a 50000 Martindale abrasion target. A black metal tilt mechanism, chrome gas lift, and black twin-wheel casters complete the specified build. Functionally, the chair rotates 360 degrees for easy desk reach. Pneumatic height adjustment provides 80 mm of travel, taking seat height from 440 mm to 520 mm through one lever. The synchronized mechanism allows an 18-degree back tilt, while a rotary tension knob adjusts recline resistance for users up to 150 kg. A side lever locks the chair upright or releases controlled reclining. Fixed armrests remain 220 mm above the seat for forearm support during typing, and five casters permit movement on hard floors and low-pile carpet. Durability targets include 100000 height-adjustment cycles, 300000 rocking cycles, and 100000 caster rolling cycles. Net weight is 21 kg. The model is suited to private managers' offices, boardrooms, private workstations, consultation rooms, hotel business centers, and reception back-office areas. For desk work, it is specified for use with a 760 mm high office desk. Buyers should note the unbranded EXEC-HB-GRY-ALU-01 designation, 150 kg user weight capacity, fixed-arm layout, and formal gray finish. Packaging information lists protective compartment packing, with reference data showing one set across two cartons, 23 kg gross weight, 850 by 420 by 720 mm carton dimensions, 0.26 m3 volume, and 40 minutes assembly time per set.