Button Maker Supplies fit 32mm Button Makers on the market, and any standard 32mm button maker can be used with our supplies. All Set for Crafting: This kit offers everything you need to create custom buttons easily. Included are shells, clear mylar covers, paper, and plastic backs. You will receive 300 complete sets, each including a cover, plastic back, round clear film, and paper insert. Creating your own custom button badge is simple. Just choose a photo or design, cut it to size, place it on the shell, add the mylar and plastic back, and press. Your custom button is ready! Color: Silver Material: Tinplate Package Contents: 300 x metal covers 300 x plastic backs 300 x clear films 300 x round paper inserts Note: The package includes only the items listed above. Other products are not included. Lighting and monitor settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.