The Lid-Lok helps prevent curious toddlers from accidnetally falling into the toilet and helps protect little fingers from being hurt by heavy seats and lids. It also helps prevent activie babies from throwing toys and household items into the toilet. The Lid-Lok installs quickly without tools to help keep your baby, your valuables and your plumbing safe, and is easy to release for adults and older children. Mommys Helper Lid Lok in ranked number 1 by professional child proofers and has been praised for its siimple one-handed operation.