These are machine cut knives. It is made of high quality ABS material, sturdy and strong. Easy to install, easy to use. Perfect working condition, good stability and high reliability make it very durable. Suitable for FRT18A FRT18A1 Art 46155 FRT20A1. Specification: Condition: Brand New Material: ABS color red Compatible: Suitable for FRT18A FRT18A1 Art 46155 FRT20A1 Package List: 60 * Plastic Machine Cutter Blades Note: Please allow 1-3cm errors due to manual measurement and make sure you don't mind before ordering. Please understand that colors may have chromatic aberration as the different placement of pictures. Note: Data is manual measurement, please allow 1-169cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.