Two-blade set Standard size, 5cm width. This is a cutter blade for packing tape. Unused, brand new. As shown in the photo, bend the metal fitting to fit the packing tape. The packing tape is a sample for attaching the cutter blade and is not included. I have been using a single-blade cutter for 25-30 years. A typical household probably has about two rolls of packing tape, right? If you want a lot of packing tape cutter blades, there are other sellers. I am offering a two-blade set so that many people can use it. Please purchase if you are okay with a two-blade set.