Hang your keys or other light items on you own special Allosaurus footprint set! Sold in sets of 2 or 4, these wall hooks are made of lightweight 1/4" (6mm) birch wood, which means you can mount them just about anywhere. They come with a built in keyhole in the back to allow for easy installation with a screw or nail. We suggest using something with a thin, flat head for ease-of-use. Each piece is finished with a clear, matte lacquer to help protect it.