When you buy a multi screwdriver, it usually comes with one or more holders with various interchangeable bits. This will give you a place to put those bit holders on your peg board for easy access. This will hold 5 interchangeable bit holders. I made this as 4 parts as i'm new and could only figure it out this way. lol Br careful as there is a left and right side, make sure you print one of each, and assemble it properly. Not sure why the photos are not showing on the preview, but if you click on the photo, open it up and select, 'view original', you will see it.