Replacement Blades: size #11.
Replacement blades arrive in a reusable, clear, plastic tube with handy pull-off style lid.
Clear tube measures: 2 inches in height; 1/2 inches wide and 3/8 inches in depth, including lid.
Includes five (5) blades for use with a variety of Fiskars craft knives (listed below) and most standard hobby craft blades.
Fiskars products this works with: Fiskars Softgrip Craft Knife #12-67007097, Fiskars Craft Knife #12-67007097.