The Black High-Back Leather-Faced Swivel Executive Office Chair, model OC-HB-LF-660-BLK, presents a formal executive seating profile in a coordinated black finish. Its tall padded back, upholstered seat, fixed closed-loop armrests, and five-star caster base create a conventional office-chair silhouette suited to desk-based work and meetings. Visible edge piping defines the black leather-faced seat surface, while the smooth black leather-faced front panel follows the padded back form. The clear width between armrests is 540 mm, and overall dimensions are 660 x 680 x 1180 mm, giving the chair a substantial high-back presence without a visually complex mechanism. Construction combines upholstery, molded cushioning, and a supportive frame. The finished seat cushion is 90 mm thick and uses molded polyurethane foam, with a listed seat foam thickness of 70 mm at 40 kg/m3 density. Backrest padding is 70 mm in finished thickness, using layered polyurethane padding 50 mm thick at 32 kg/m3 density. A 240 mm lumbar support zone is integrated into the back. Internally, the back uses a 12 mm bent plywood or steel-reinforced polymer panel. The frame is finished in black painted metal or nylon, and the fixed loop armrests combine an integrated polymer pad with metal inner support. Under the seat is a black painted steel tilt plate with lever and tension knob, a chrome-plated steel gas lift with black telescopic shroud, and a black glass-filled nylon five-star base with 3.0 mm equivalent rib thickness. The chair supports 360-degree swivel movement and pneumatic height adjustment with 100 mm of travel through the right lever. Its synchronized center-tilt action reclines 15 degrees, while a rear knob adjusts resistance for users up to the rated 135 kg user weight. One upright lock position is engaged through the under-seat lever. Five twin-wheel casters provide omnidirectional movement on timber, laminate, tile, vinyl, and low-pile carpet; the fixed armrests provide 230 mm of forearm support above the seat. The net weight is 17.5 kg, and specified targets include 120 kg seat foam load-bearing capacity, 90 kg static back support, 45 kg downward load per arm, 100,000 caster cycles, and 200,000 tilt cycles. This model fits private executive offices, manager workstations, open-plan task positions, meeting rooms, consultation spaces, home offices, reception desks, and formal interview settings. Procurement teams should note the unbranded supply designation, packaged gross weight of 23 kg per set, two-carton packaging, 0.26 m3 carton volume, and 40-minute reference assembly time when planning delivery and installation.