A general misconception about the adaptor plug is that they are the same as plug adaptors. Far from being same, adaptor plugs and plug adaptors are two different devices use for entirely different purposes. An adaptor plug is a plug that is used to connect two devices and make them compatible with each other, while on the other hand a plug adaptor helps to use varying power outlet sockets to plug in a device.
Adaptor plugs are used almost everywhere, ranging from simple household appliances and devices to complex industrial machinery. As such their size can vary from that of simple plug to a transformer block depending on the area of usage. Most adaptor plugs simply consist of a two pin socket on one end and three pin plug on the other end.
Some latest adaptor plugs are also custom made for frequent travelers such that they have a female socket for various types of plug in different countries along with a number of male plugs that can be changed according to need. Although these plugs are much costlier than the simple adaptor plugs, they generally come handy to people going on global trips who find them useful while using their devices like laptops, electric shavers, hairdryers etc.
It is vital to use the appropriate adaptor for your device. If you feel the need to get a new adapter plug for a device, it is always advisable to take professional assistance to avoid causing any serious damage to your electrical or electronic device.