1、This is a set of 10 circular blades used on rotary cutter that generally used by quilters to cut fabric 2、Made from high quality steel, these rotary cutter blades are very sharp, and are available in size of 60mm 3、Several layers of fabric can be cut simultaneously with a sharp blade, making it easier to cut out patchwork pieces of the same shape and size than with scissors 4、They can be used on both manual rotary cutters and electric rotary cutting machines 5、The blade is well packed in a transparent plastic case which provides protection for both blade and hand Features: This is a set of 10 circular blades used on rotary cutter that generally used by quilters to cut fabric. Made from high quality steel, these rotary cutter blades are very sharp, and are available in size of 60mm. Several layers of fabric can be cut simultaneously with a sharp blade, making it easier to cut out patchwork pieces of the same shape and size than with scissors. They can be used on both manual rotary cutters and electric rotary cutting machines. The blade is well packed in a transparent plastic case which provides protection for both blade and hand. Specifications: Material: SKS-7 steel Size: 60 x 10 x 0.3mm / 2.36 x 0.39 x 0.01" Quantity: 10 Package Includes: 10 x Rotary Cutter Blade Note: Blades are quite sharp, please be careful and keep them away from children.