The 20010/22610 are #10 Curved Edge Hobby Blades. These blades are a general purpose blade designed to fit most Excel Knives and comes equipped with every 16003 Pen Knife (#3). These blades are available in your choice of 5 or 100 blade packs - Please Specify Above!
Pack of 5 Blades - 21010 (Now 20010)
Pack of 100 Blades - 22610