OLFA 9mm Snap Off Silver Blade, 50-Pack RAZOR SHARP 9mm PRECISION BLADES - These blades are made from Japanese tool grade steel for unparalleled sharpness and superior edge retention. The long lasting precision of these blades allows you to work longer uninterrupted. CONTAINS 50 BLADES / 650 SEGMENTS - You'll receive 50 blades in this refill pack. Each blade contains 13 razor-sharp AB Precision Silver Snap-Off segments (650 segments total). Simply snap for a new sharp blade edge.