Features: 1) Luxurious cow leather covers all seating areas with matching PVC on back and sides (also can be PU leather) 2) Black rims go well with the color of cow leather 3) Pronounced lumbar form and protuberant headrest pillow provide exceptional comfort and support for lumbar and head 4) Layered seating cushion is designed to maximize your working comfort 5) Stylish sculpted armrests are upholstered with sleek, soft cow leather for extra comfort and support 6) Gas lift height adjustment and lean forward or tilt back and tilt lock features add versatility 7) Large black nylon 5-star base with dual wheel castors provides smooth and easy movement along the floor 8) Curves: conforming to the natural curvature of body spine 9) Armrest: wood and PVC armrest 10) Base: heavy duty wood base 11) Headrest: ergonomical soft headrest 12) Mechanism: lockable and synchro-tilt mechanism 13) Test standards: a) Armrest: BIFMA b) Base and castor: BIFMA c) Plywood: BIFMA d) Foam: CAL117 e) Gas lift: BIFMA 14) Dimensions: a) Back (W x H): 56 x 78cm b) Seat (W x D): 56 x 54cm c) Seat height: 50 - 57cm Packing: Carton size (L x W x H):120x 78 x 75cm/2pcs N.W.: 53kg G.W.: 57kg Conveyance: Qty/20\'\' GP: 84pcs Qty/40\'\' HQ: 210pcs