I believe they haven’t been used. Interchangeable Design: These blade cartridges are designed to be swapped out for different cutting patterns, such as straight, scallop, or decorative edges. Safety Features: The blades are concealed within a protective plastic shell for safe handling, only exposing the cutting edge when pressed down in the trimmer housing. Variety of Edges: The set includes multiple decorative options, including a Scallop blade for creating wavy edges on paper and crafts.
