Description:Seller Integrity Gurantee : 100% Brand New And High Quality.Item Features: 1. Totally 100 pieces replacement blades can be applied for precision cutting, engraving, trimming and stripping. 2. Made of premium quality carbon steel, strong and rust resistant, durable for long time repeat use. 3. Fits for many medium duty craft knives including X-acto, suitable for cutting of wood, cardboard, paper, plastic, cloth, leather, foam boards, etc. Warming Tip: The blades are ultra sharp. Please keep away from children to avoid getting hurt accidentally. Product Specifications: Type: #11 Replacement Blade Material: SK-5 Carbon Steel Color: As Picture Shown Quantity: 100Pcs Size(Per Piece): Approx. 39*6mm Note: Please allow some deviation due to manual measurement and make sure you do not mind before purchase. The color of the actual item may slightly vary from the images due to different computer screens and display settings. Thanks for your understanding! Package Include: 100* Replacement Blades 1* Plastic Case If you have any problem with the product, please communicate with our customer service first, we will actively deal with all problems.If any question, please feel free to contact us, we will solve the problem for you as soon as we can.