The LDH blades are made out of high carbon steel, and are designed with a universal opening and will fit on other 45 mm rotary cutters with the same design, such as Olfa and Fiskar.
They are constructed from high carbon steel, which are the same material the Midnight Edition Shears are made from.
Durability can vary from person to person, depending on how they use their cutter and the type of cutting mat they have. LDH have put these blades to the test at a number of different fabric shops in Toronto, who are cutting up to 8 hours a day, five to seven days a week. The results show that the LDH rotary blades lasted between 3 - 4 months.