The Proto 11-921B Stanley 11-921B Heavy Duty Utility Blades (400 Pack) are a high-quality product designed for various automotive and industrial applications. With a brand like DeWalt, you can trust in the durability and reliability of these blades. This 400 pack of utility blades is perfect for professionals and DIY enthusiasts alike, providing them with a steady supply of blades for their projects. The open box packaging ensures easy access to the blades when needed. Box is open but they are new. T