Wall Storage containers

Now, I made this specifically to place on the wall and to hold hot wheels tracks. But technically you can use this for lots of things. If I don't have a picture up of it on the wall yet its because we are moving things around right now and finding the right place for them. I have 4 different size holes on the back and on the bottom. If you size down you can still use the larger holes and if you size up you can use the smaller holes. I can't wait to see what other use it for. Hope you all