DIY custom key chain kit from ButtonMakers.net! This set includes shells, slotted backs, mylar, and chain style key chains with a tab on one end and a split ring on the other. You press a button like normal using the slotted flat back instead of a button back, position slot at the top. Then remove the button from the machine and insert the tab into the slot. That's all there is to it! You now have the ability to make all metal, fully customzied key chains for retail, gifts, or giveaways!