2.25" Chunky Necklace Kit Includes: 2.25" Front Shell, Necklace Back, Mylar, and accessories to make your own printed graphic, or fabric covered necklace. Simply make a button as usual and then add your own chain to complete the look you want. 100 Sets per package. Fits industry standard size 2.25" button machines made in the USA which includes our button makers. Not for use in Badge-a-Minit machines. Click for more information on Badge-a-Minit button sizes.