Our blades are made out of carbon steel and are designed with a universal opening so they will fit on other 45mm rotary cutters. 

Material

Our rotary blades are made from carbon steel

Durability

This can vary from person to person and how one uses their cutter, as well as the type of cutting mat they have. We tested our blades at various fabric shops in Toronto, and after using them for up to 8 hours a day, five to seven days a week, each shop got between 3 - 4 months of use from one blade!