Available in 7 different sizes, our Rabbit Cutter can be purchased separately or in sets. Sizes are measured across the longest/widest part of the cutter. Please see pictures that provide a visual of the measurements: 15mm 18mm 20mm 25mm 30mm 35mm 40mm Cutters can be purchased in the following sets: Trio Pack - 15mm, 20mm, 30mm Full Collection of 7 sizes Material: PLA plastic, a biodegradable thermoplastic polymer. Colour: Colour will be at random for the Hare cutter and is subject to availability. Use: Please see our page "Cutter Use and Care" for tips on getting the perfect cut. Care: Please do not put MyClayCo cutters in the dishwasher. The material may warp if exposed to high heat. Please see our page "Cutter Use and Care" for instructions on caring for your cutters.