Unique design: The cutter with the inner frame is hidden inside the body, and the side gear twists and cuts the film, which is safe and reliable. A non-slip base on the bottom of the body provides extra stability for any home Blade Design: The side blade is hidden inside the body when not in use, the side blade switch is built-in the child protection function. If you get work done, make sure to put it in the "off" state. So you have to use a little force to "open" it Wide range of uses: tape commonly used in the semiconductor field Ordinary scotch tape, packing tape, tape for manual accounting, etc. Allowable Width and Inside Diameter of Tape: The total width of the tape should not exceed 1.95 inches. And 1" and 3" core lengths are the same