Complete Set Came with 9 carbon steel blades(15____30____45____)that were machine punched and embossed which make it unparalleled sharp. 360-degree rotating This hand-held tool has a 360-degree rotating blade which enables you to cut very complex shapes easily and quickly. Safe useUnlike other craft knives the blade will not readily cut human skin in normal use and it is therefore very suitable for use in schools for younger craft and hobby enthusiasts. Applications IncludePaper-cutting decoupage stencil-making planner stickers artwork graphic design architecture scrapbooking sign writing using vinyl and many other uses. Model MakingIt will enable you to cut complex shapes out of vinyl covering materials to create your own decals and roundels.