Features: The socket contains a number of double-hole sockets and three-hole sockets, which can meet different needs. Material: The socket is made of high quality insulating material and the inner metal contact sheet is made of copper to ensure good electrical conductivity. Safety: Sockets usually have an insulating layer inside to prevent electric shock, and sockets are designed with protective doors to prevent children from inserting foreign objects into the jack. Easy to use: The power socket is simple to use, plug and play, and easy to carry. Date First Available May 18, 2020