I had, notice the past tense, a single package of Clover brand clips. Over time, about 4 or 5 years, I am down to only two left. Yes, I love to use them and my cat has figured out how to bite them so they open up. Then they become play things that get lost. I have put them on my birthday list and hope to get another set of cat toys. I use them only for adding my binding and would use any brand I had in hand. Two of the Clover brand did break while I was using them, the metal "spring" just snapped leaving me with just the plastic pieces. I particularly like the lines on the back so I can keep my binding folded over evenly.