Specification: Material: Tungsten steel Color: yellow, red, blue Tool handle diameter: 2mm Full length: 23.5 (mm) Specifications: 30 degrees, 45 degrees, 60 degrees Function: self-adhesive, transfer paper, advertising-grade reflective film, thin cardboard, PE, etc. Package Including: 50pcs: 20pcs60 degrees Blade(blue cap) 20pcs45 degrees Blade(Red Hat) 10pcs*30 degrees Blade(yellow hat) A 45-degree blade is used for most general-purpose cutting; a 60-degree blade can achieve the most complex and delicate cutting; for fabric, thin cardboard and leather, a 30-degree blade is recommended. The tip made of cemented carbide can still be sharp and durable, and can be cut for a long time; the blade made of high-quality stainless steel by grinding and polishing can withstand wear and tear, allowing you to enjoy more cutting time. These cutting blades perform well for cutting media up to 0.25mm thickness. They could be used to cut through thicker and denser materials such as glitter paper, adhesive foil, and computer paper, chipboard, stamp material, thick cardstock, foam sheets, cardboard, balsa wood, and some fabrics. This replacement blades are made of quality tungsten steel, sharp and durable not easy to rust, you can cut your project fluently and cut clean with no dragging and no skipped spots. Using them can cut paper, cardboard, faux leather and so on, which is an essential tool for festivals or party decorations.