This shelf is made of quality aluminum alloy with corrosion-resistant surface. It is suitable for humid environments such as bathroom (even in shower) and kitchen. It is designed to use in shower. With plenty of drain holes on shelf, water goes away quickly after shower. This space saver holder takes up little space yet provides large extra storage space. In bathroom, put toiletries on storage shelves, such as shampoo, conditioner, shower gel,etc, put towel below. In the kitchen, the floating shelf can be used to put seasoning bottles, the towel holder can be used to hang towels. Also perfect for bedroom,living room, office,etc. Size Chart: Triangle: 22×5.8cm/8.66×2.28inch Square: 32.5×12.5×5.8cm/12.80×4.92×2.28inch Package Includes: 1 Piece Bathroom Corner Shelves Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!