Cutting replacement blades in total including 45 Degree Standard Blades (Red ) 60 Degree Blades ( Blue ) 30 Degree Blades.(Yellow ) It is durable, not easy to rust, sharper than other blades on the market, and can cut your project smoothly. It can last for a long time. Blades are compatible with most cutting machines, compatible with most paper-cut cricut explore air, air 2 ethylene cutters. Suitable for cutting medium with thickness of 0.25 mm, light to medium weight materials, such as sticky foil and computer paper, particleboard, seal material, thick card,Vinyl Blade Whether it& 39;s creating cards, scrapbooks, personalized gifts, Christmas party wall decoration. The tip made of hard alloy is sharp, and can cut for a long time. Specification: Color: yellow+blue+red Material: hard alloy Size: 2.36mm Package Includes: Choice 1: 10x Cutting Blades 30 20x Cutting Blades 45 20x Cutting Blades 60 Choice 2: 10x Cutting Blades 30 20x Cutting Blades 45 5x Cutting Blades 60(2 Pack) Note: Conversion: 1inch=2.54cm, 1cm=0.393inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience