RAZOR SHARP 9mm PRECISION BLADES - These blades are made from high quality 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 10 SOLID BLADES - You'll receive 10 solid blades in this refill pack. These non-segmented blades can be fully extended for cutting thicker materials. Be prepared for your next cutting task with these ultra-sharp steel utility knife blades. COMPATIBLE WITH 9mm KNIVES - OLFA's A-SOL/10B steel blades are compatible with any 9mm precision/utility knife. However, these blades perform best when equipped with a 9mm OLFA utility knife. CUTS A VARIETY OF MATERIALS - These box cutter blades provide accurate and reliable performance when cutting paper, vinyl, cardboard, insulation, molding, foam board, caulking, and more. They're great for industrial and construction applications. THE OLFA STANDARD - As the original inventor of the Snap-Off Knife, OLFA has maintained a standard of cutting excellence for our quality and durability. Pairing your OLFA 9mm Utility Knife with OLFA 9mm Blades will provide optimal results.