I have purchased these twice in the last few months, only making the second purchase with the hope that the first was a fluke or bad batch. It seem they have changed the formula for this product which has dramatically decreased the quality. I was using them in my girls hair and I had been able to use them alone to hold pony tails and pigtails. They are no longer even reliable for the ends of small braids, they break within a few hours and braids unravel, ponytails fall, or my daughter comes to me with a one pigtail, etc.
Not only are they worthless for use in hair my husband had been using them like stoppers for various parts of rigging his fishing lines. These band break when they get wet, so he can no longer use them. My son had also been using them with his construction sets, they break or lose shape to quickly to be use.
To sum it up, I consider this new formula to be a complete failure and a good product has been lost. I will not waste any more money on it, I'm setting out to find a quality alternative.