Safety and energy saving Socket locks effectively prevent unauthorized use of sockets or connection of inappropriate electrical equipment, ensure the safety of sockets and equipment, and reduce environmental pollution by saving energy. High-quality materials The lock body is made of high-quality zinc alloy and durable ABS plastic, specially designed for European sockets. Zinc alloy locks are strong and durable and can withstand various attacks. Comes with two keys and remains beautiful and durable for long term use. Easy to Use Unlocking and locking the exit lock is very simple by inserting the key into the lock and turning it a quarter turn clockwise to lock or remove the key. Easy to Manage Outlet locks easily manage outlets to ensure legally permitted use and avoid waste of resources and damage to equipment. Widely applicable Lockable sockets have many advantages such as high safety, fire protection, electric shock, economical use, convenient use, environmental protection and energy saving, etc. They are widely used in various public spaces, schools, hospitals and other places where electrical equipment needs to be protected.