Precision and Accuracy: 45mm rotary blades made of SKS-7 steel, sharp and not blunt. They can easily cut paper, fabric, leather, blankets and others. Double Action Safety Lock: The built-in safety lock locks the blade to prevent accidents when the user presses down on the handle when the blade is not in use. Ergonomic Design: The curved loop handle design provides a natural fit in your hand and the non-slip grip adds stability and control. Suitable for Left-handed and Right-handed users: The rotary blade can be mounted on either side of the rotary cutter, providing the optimum blade angle for both right-handed and left-handed users. Wide Application: The rotating circular blades can be used in offices, schools, workshops and craft premises. They are ideal for knitting, scrapbooking, sewing, cutting fabrics, crafts and many morethings again.