1. - Made of solid durable aluminum material which will not change color or rust no matter how long it is used. The surface is polished and anodized, durable, anti-rust, and anti-corrosion 2.Clean & Tidy - This bathroom organizer shelf will help you to clear wall or counter space and keep everything neatly organized within arm's reach. It is ideal to use in your bathroom shower room washroom balcony kitchen and other places 3.Large Storage Space - 2pcs with different sizes in the package. One is 11.8x3.94x0.98inch and the other is 15.7x3.94x0.98inch. Large enough for holding items of your daily needs. Ideal for home wall décor & extra storage 4.2 Installation Methods - 1. Screw the shelf into the wall. 2. No drilling with provided self-adhesive sticker to stick it to the wall. This installation method is fit for smooth and non-porous surfaces such as tiles glass and metal surfaces. Not fit for drywalls or paper walls