The Lid-Lok helps prevent curious toddlers from accidentally falling into the toilet and helps protect little fingers from being hurt by heavy seats and lids. It also helps prevent active 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. Mommy's helper lid Lok in ranked number 1 by professional child proofers and has been praised for it's simple one-handed operation.