Item Number: L202 Products: 18mm Snap off Spare Blades (pack of 10) Feature: sharp cutter blades Dimensions: 18mm W x 100mm L x 0.4mm T 60 degree Material: SK2 high quality carbon tool steel Cutting Materials: wallpaper, wall cloth, cardboard, plasterboard, plastic, carpet etc. Number of edges: 8 cutting edges per blade Compatibility: work well with most 18mm utility knife handle Package: 10 pcs per plastic box