Inexpensive and highly durable, these hinged covers live up to their name and can be used in a wide range of applications. Bopper Stopper can take hard knocks in stride while protecting digital keypads, electrical outlets, smaller‑size pull stations, biometrics, volume or lighting controls and push buttons to name just a few. The covers and hinges are molded of super tough polycarbonate material. The devices feature a stainless steel torsion spring to keep the cover closed. Bopper Stoppers come complete with installation screws and gasket.