Mommy's Helper Slide-Lok is the best bi-fold door latch available.
The Slide-Lok keeps children out of closets with bi-fold doors and helps to prevent pinched fingers. The Slide-Lok is almost invisible clear material.
The 7" length of the Slide-Lok slides to cover the hinge point of the bi-fold doors. The Slide-Lok features an easy-to-reach slide-rod. The Slide-Lok is easy to install and no tools are needed.
E & B Distribution - Slide-Lok (Bifold Doors)