Office Chair with High Backresk

We committed to providing customers with quality products, and actively refer customers advice with the large extent to meet customer needs. So we have made improvements to upgrade all office chair: 1. The material is now upgraded and with quality assurance, like armrests, tray, and wheels, they all provide by the best manufacturers among the similar products. 2. All parts of PU are used the same surface PU like its seat which will effectively reduce the chemical odor. 3. Thick and high-density foam has comfortable sitting, and prolong use without deformation. 4. The accessory screws box are plastic packaging and are set numbers to prevent its loose or missing. 5. The use of anti-loose screws, which can effectively prevent the screw loose after a long time.Precaution:- Please put tray with “Front” outward when installing.- Lift the lever under the seat to raise the seat; lift the lever and sit on the chair to lower the seat. Pull the lever outward to release the tilt mechanism; push the lever in to lock the mechanism- In resting mode, the seat and backrest will move together when you lean back and the inclination of backrest can not be changed independantly.Product Parameters:- Material: PU + organic polymer foam + plastic parts- Color: black- Base dia.: 70 cm- Seat: depth 54 cm, width 50 cm- Backrest height: 74 cm- Adjustable height: 44 - 54 cm(The above figure is an approximate value)Shipping List:- 1 x Office Chair- 1 x Manual (English, German, French, Italian, Spanish)- 1 x Tool - Colour: Ink Black - Material: Synthetic Leather, Mesh Fabric, Plastic, Foam, Steel - Overall Size: 28.7""L x 27.6""W x (44.1""-48""H) (73 x 70 x 112-122 cm) - Seat Height: 17.3""-21.3"" (44-54 cm) - Seat Size: 21.3""L x 19.7""D (54 x 50 cm) - Height of Armrests (from Seat): 9.1"" (23 cm) - Backrest Height: 29.1"" (74 cm) - Star Base Diameter: 27.6"" (70 cm) - Product Weight: 34.2 lb (15.5 kg) - Max. Static Load Capacity: 330 lb (150 kg)