The 12" Portable Combo Blade Trimmer by American Crafts features tri-cut convenience. Switching between blade types is as easy as flipping a switch! The spring-action track allows for smooth, accurate and precise cuts. The extendable arm measures up to 16.5" and can be used to cut or perforate 12" x 12" paper up to 400 gsm. The trimmer comes with a replacement tri-cut blade.