Our Glasses Accessory Stamp was designed to add accessories to your polymer clay creations. They are a fun way to dress up characters and animals. These are available in 7 different sizes that can be purchased separately or as a full set. Sizes are measured across the longest/widest part of the cutter. Please see pictures that provide a visual of the measurements: 8mm 10mm 12mm 15mm 18mm 20mm 25mm Cutters can be purchased in the following sets: Full collection of all sizes Trio of sizes 10mm, 20mm and 25mm Material: PLA plastic, a biodegradable thermoplastic polymer. Colour: Colour will be at random 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.