Easy to install, High Quality Tempered Shelf Includes: 10 inches tempered glass shelf 2 wall clips (aluminum U-channel cut outs) Screws and Washers Multiple shelves on the same packaging are available. Instructions to install: The u-channel needs clear silicon to hold the glass in place. After you install the u-channel cutouts on the wall, spread silicon inside, top and bottom, of the U-channel and place the shelf inside. Clean any excess silicon which may leak out of the u-channel. We also recommend putting silicon on the edges of the glass where the shelf touches the wall. This will help secure it and also keep liquids from dripping on the walls.