Lock those bi-fold doors. Finally: a solution for childproofing bi-fold doors! This clever lock keeps tots out of closets and pantries (and prevents prying fingers from getting pinched). Slide-Lok helps to protect children from pinched fingers by bi-fold closet doors. Simply grasp the Slide-Rod and move Slide-Lok into place over the hinged area to prevent doors from opening. Slide-Lok's clear plastic design blends well with any decor and minimizes scratching or marring of door surfaces.