The starter kit includes a doily piercing cartridge, so you can start using it right away. This versatile starter kit comes with a sturdy base that is used for a variety of different designs (sold separately). Simply switch cartridges to change circle designs. The tool creates punched circles with punched edges. The starter kit comes with a mat cartridge, ideal for decorations, placemats, and cards. Punch circles 6 to 12 inches in diameter. cm required with a simple flip of the switch. Simply center your paper on the base of the tool and punch. No need to trim the paper first.