Bopper Stopper for Keyless Lock - Smoke Color STI-6521 Bopper Stopper cover helps protect everything from electrical outlets to volume and lighting controls to push buttons. Inexpensive and highly durable, this hinged cover lives up to its name for a wide range of applications. Can take hard knocks in stride while protecting digital keypads, electrical outlets, smaller size pull stations and push buttons to name just a few. Both the cover and hinge is molded of polycarbonate material while the hinge springs are formed from stainless steel. Comes complete with installation screws and gasket. Bopper Stopper is backed by a lifetime guarantee against breakage in normal use. Cost effective and easy to install.