The type of material used to make the stapler does not matter. They're all made with the same material and design, and you only need to choose the one that suits your needs best. However, it is important to know that the material affects the durability of the stapler and the kind of work that you intend to do with it. For example, if you plan to use it as a staple gun, then you might want to choose a stapler made of plastic.