Adhesive mount means no holes, no drilling, no tools; easy installation. Use them in the kitchen, bathroom, bedroom, den or any place that you want to block access. Going on vacation with the little ones? Install in your rental home or cottage for the week. Adhesive mount means no holes left behind. 3 pack Leaves no damage when removed Fits most cabinet doors and drawers, including framed and frameless styles Perfect for use on glass, metal and mirrored surfaces Simple, one hand adult operation