I bought one years ago but you had to fold it up so many times to fit under the ruler and yes, it was flimsy to the point I snapped one corner of it but I taped it and it worked just fine for me until I ordered the larger one I think last year. I gave the damaged one to a friend. I'm very happy with the larger one but you still have to be careful with them as I sliced right thru the side of my index finger late one night. Rule #1, don't cut when you're tired which I was doing so I paid the price for it. THought I'd never quit bleeding but finally I did. I don't have one of those cutter machines with dies, etc as I have no where to store it plus to me you waste a lot of fabric but that's just my thinking, what do I know? Anyway, I love my slotted ruler and use when ever I can to save me time and energy.