These cutters are ideal for use with a range of edible and on-edible materials including: sugar paste, (rolled fondant), petal paste (gum paste), marzipan or craft clays. Create beautiful flowers to decorate cakes, desserts and more. NOTE: Tools used with food products should be kept separate from those used with non-food materials e.g. craft clay. Dimensions: Calyx 11 mm (0.4"), Outer 23 mm (0.9"), Inner 18 mm (0.7") .