The JEM Cosmos and Calyx Set comes with 2 plastic cutters. They are used to make the cosmos flower for use in floral bouquets using gumpaste, fondant or chocolate. They make a cosmos flower that is approximately 1-1/4" and the calyx is 7/8". The plastic cutters have an easy grip on the back with a hole in the middle to poke the gumpaste out if it becomes stuck in the cutter. This set of cutters also comes with a set of instructions provided by JEM.