The Lid-Lok protects children from accidents, and keeps plumbing safe. There'll be no more toys to scoop out when you can keep curious hands and toys from getting into the wrong place. It is quick and easy to open. The one hand release operation is easy for an adult hand, but difficult for a child. This easily attaches to all types of bowls and lids. No adhesive required and you don't have to un-bolt the seat to install. Easy for adults to open. Fits most standard toilets. Installs without tools. Simple, one-handed operation.