Defender Security U 10307 4-Inch Surface Bolt, Solid Brass, Classic Bronze Finish VERSATILE SURFACE LOCK  The U 10307 Surface Bolt can be mounted vertically or horizontally and is effective for keeping doors, cabinets and closets closed, deterring kids and pets from getting in or out from certain areas of your home, and so much more. GREAT FOR CHILD PROOFING  The surface bolt lock is a great alternative to traditional products to baby and child proof your home. It can be installed out of the reach of inquisitive toddlers and adds a level of security to many areas of your home. Great for pet-proofing too! EASY INSTALLATION  Installation is quick and easy! The surface bolt includes a surface mount keeper and a mortise-style keeper to accommodate a variety of applications. DURABLE CONSTRUCTION  The surface bolt lock is constructed from solid brass with an attractive classic bronze finish. It is built to last. PRODUCT INFO  The U 10307 Surface Bolt is 4 in length and includes two different keepers for surface or mortise installations.