Blades are made from 100 percent zirconium oxide, they are non-magnetic, non-sparking, non-conductive, chemically inert, and never rust. They are also very strong and last up to 11 times longer than comparable metal blades. While these blades are designed for the Slice seam ripper handles, they are also compatible with Slice craft handles, scalpel, and Precision Knife. These smooth, narrow blades slide into stitches and cut effectively without tugging the surrounding delicate material.
Package contains four ceramic blades.