Wishing it has measuring marks......I like to use the fiskar ruler/ cutter combo....although, in all the years I have been cutting fabric w rotary/ruler I think I can count on one hand the slips.....I guess I am either lucky or my spider walk really works....yes, I have taken two little slices of fingertip off...long time ago.....very careful now! I personally think either trying to cut too many layers, in a hurry, or just not paying attention.....barring, of course, any physical impairment , causes a lot if slippage. But to each his own..that is why there are so many tools for us, thank goodness, because if it was still scissors, cardboard templates and a hand needle and spool of thread, I certainly don't think I would be doing it.