It comes with it's own tiny retractable razor knife, tucked away in an inside

It comes with a holder, but if you lose the knife, any other exacto knife will do

lucky for us they included a small handy knife.

Comes with a convenient knife to cut the tape

The non-rippable characteristic is unfortunate, but there is a nice little snap-knife stuck to the inside of the roll, so that's a cool freebie.

I wish we would've got our free knife with it, but being free , nothing can be said

Scissors are OK, but the knife is better