Material PLA+ - 3D Printed Size: Small 11mm ; Large 22mm Our cutters are printed with PLA+ material (Polylactic acid), a polymer made from renewable resources, corn starch in particular & is biodegradable in industrial composting plants. Sometimes your clay can be sticky so to avoid clay getting stuck inside the cutters, place a piece of cling wrap on top of the clay & then use the cutters to cut out the shapes. Or you could also dust your clay cutter with baby talk, flour, cornstarch or polymer clay powder before pressing the cutters into the clay. Highly recommended for the EMBOSSING CLAY CUTTERS Note: The cutters may vary in colour depending on what we have available at the moment although it will always be there psame brand in order to maintain the quality. Keep the cutters dry & store them in an air tight container, if dirty clean them with a dump cloth. Keep out of reach of children, adult use only. Polymer Clay Cutter Cutters Set Organic Square Organic Shape Clay Tool