A two in one socket that is a must in every household. To ensure complete safety and security, the sockets are ISI marked and thus follow??the guidelines prescribed. Socket housing is made from PC as well as the switch cap to protect from fire. The spring used in the making is??made from EN-42 material. Other features include high conductivity, low voltage drop, and phosphor bronze. A socket of this kind comes??in a pack of 10 pieces. The shutter retainer is made from German grade POM to ensure the child???s safety from electric shocks.