Chirstopher, my father in law made them for me. He used little knobby things from a hobby store. They are about 1 inch long and he trims them all to fit. He used a method that he got from making displays for his golf ball collection of which he has about 20 racks set up. He doesn't have the glass front on his. It is really nice because the chip display I had before (the 63 chip model that have been shown here before) you had to take it down remove the back and change chips or align them which became a pain. With this one open the door and presto chango. I am glad you like them.