This is a type of two-way switch widely used in households, offices, etc. It works on the mechanism of Rocker, tunnel terminals, and finger-proof. All these individuals and or combined are instrumental in preventing accidental fire and/or preventing the visibility of sparks. A two-way switch- 2M of this category comes in a pack of 10 pieces. The contact plate, which has to be high on conductivity and low on voltage drop, is made from phosphor bronze. It also has a riveted silver cadmium tip.