Once toddlers learn how to twist the knob, they open the door to a new world of potential danger. Keep your little explorer from off limits areas with our durable and strong Parent Grip Door Knob Covers. This new design has a wider base to fit most standard door knobs and easy to install with a few simple clicks. Easy for parents to grip when opening the door, difficult for kids to figure out how to use. The improved polypropylene snaps are stronger than ever before and help keep the cover from coming off the knob when curious little fingers pull on it.