Features: 1INCLUDED TOOLS: Includes universal pen adapter, pen holders, 7 cutting blades with 4 different specifications, suitable for cutting machines. 2UNIVERSAL ADAPTER: This pen adapter is used for pens with a diameter of less than 8MM, universal design, which is easy to install and replace. 3BLADE SPECIFICATION: Includes 4 different specifications of blades, fine point, medium, coarse, and large, to meet different cutting needs. 4APPLICATIONS: Can be used to cut thicker and denser materials, such as flash paper, adhesive foil, particleboard, foam board, cardboard and fabric. 5METAL MATERIAL: These adapter, pen holders and blades are made of excellent metal, with high hardness, impact and abrasion resistance. Item Type: Cutting Machine Blade Kit Material: Aluminum Alloy, Alloy Steel Application: For CRICUT Joy Cutting Machine Package Included: 1 x Pen&nbspAdapter 2 x Pen&nbspHolder 7 x Blades 2 x Storage Boxes