North west " Platia" offers you Patented design of switching mechanism with Radium marker, Two unique ON/OFF indicators, Slim profile, Full flat design, Durable and long lasting switches which withstand upto 1,00,000 on/off cycles and sockets more than 20,000 cycles It has three round pins in a triangular pattern. The earth terminal is slightly larger than the live and neutral terminals. The round earth terminal is the central top pin in a three pin socket and is slightly larger than the live and neutral terminals. Shuttered sockets are best for safety purpose. This additional protection provides peace of mind for parents with small children, who may try inserting a foreign object into the socket.