Material : aluminium alloyA number of patents have been obtained. Counterfeiting is prohibitedMade of all-new aluminum alloy, anti-corrosion.The hypotenuse design is safer and easier to install and clean. Add 1.8mm thicknessKeep the air in closets, cupboards and shoe cabinets free from dampness, odors and heat.Suitable for shoe cabinets, wardrobes, cabinets, drawers and other furniture.Because of the differences in the display, color difference is allowed