4-way triangle key 5 sizes Inner diameter 7mm/10mm/12mm/13mm/18mm Universal key Compatible with electricity, gas, water, electricity meters, box Product features: Material: The electrical cabinet key is made of zinc alloy, strong and durable, not easy to break, has a long service life and can be used for a long time 4-way 5 sizes: The triangle key has 5 triangle sizes. 5 inner triangle keys in different sizes can be used with 99% of triangle locks, triangle valves and triangle screws available on the market. It is functional and can be used depending on size and shape Widely used: The multifunctional knobs can be used as a wrench Compatible with turning screws and are suitable Compatible with various valves such as electricity, water, gas, trains, cabinets and elevators Multifunctional: The water key can open many things, as long as it matches the size and shape, it is multifunctional and can also be used as a wrench Compatible with turning screws Easy to carry: Suitable size, you can carry it with you or put it in your pocket. There is a hole in the middle of the key, which allows you to easily hang it on the keychain and carry it easily.