Hello! Welcome your arrival, let the shop flourish. Feel free to learn about it, and I am very happy to help you!-Ergonomic Office Swivel Chair, Desk Chair, Executive Task Chair, Manager Boss Chair, Esports Game Chair, Suitable For Home And Office, Conference Room, Reception Room, Bank- Product specifications:- Product Name: Office Swivel Chair- Color: black- Seat material:PU + sponge- Five-star foot material: Aluminum alloy- Chair wheel material: pu- Gas rod material: steel (certified by SGS)-armrest Material: PP- Weight: 20 kg- Is the height adjustable? Yes- Is it possible to move: Yes- Can it be rotated: Yes- Do you need to install: Yes-package content: swivel chair X1, installation instructions X 1All product dimensions are manually measured, there may be an error of 1-2 cm.Due to the difference in light, environment and display, it is normal for products and pictures to have a certain color difference.We only sell merchandise, not other decorations.We look forward to your visit. If you have any questions, please contact us in time, we will provide you with services 24 hours a day.