Features INCLUDED TOOLS: Includes universal pen adapter, pen holders, 7 cutting blades with 4 different specifications, suitable for cutting machines. METAL MATERIAL: These adapter, pen holders and blades are made of excellent metal, with high hardness, impact and abrasion resistance. BLADE SPECIFICATION: Includes 4 different specifications of blades, fine point, medium, coarse, and large, to meet different cutting needs. UNIVERSAL ADAPTER: This pen adapter is used for pens with a diameter of less than 8MM, universal design, which is easy to install and replace. APPLICATIONS: Can be used to cut thicker and denser materials, such as flash paper, adhesive foil, particleboard, foam board, cardboard and fabric. Specification: Item Type: Cutting Machine Blade Kit Material: Aluminum Alloy, Alloy Steel Application: For Cutting Machine Package List:1 x Pen Adapter 2 x Pen Holder7 x Blades2 x Storage Boxes Package List 1 x Pen Adapter 2 x Pen Holder 7 x Blades 2 x Storage Boxes