We're sorry to hear this, Allison, since our Heavy Duty Wet cloths go through many quality checks to ensure that you can enjoy using them with ease. We'll be sure to share your feedback with the rest of our team. As well, we recommend making sure the green strip is around the edge of the Sweeper head, and not on the floor. This should ensure that there's enough material to tuck into the grippers. We hope this does the trick, and please give us a call at (800) 214-8734 if you'd like any further assistance.