Waterproof and DustproofTemperature Tolerant & Durable MaterialScientifically formulated gel sealAccommodates virtually any British Standard 13Amp PlugThe new and innovative MastersealTM Compact range of switches and sockets from MK, has been specifically designed for use in either outdoor or indoor environments and in areas heavily exposed to dust and splashing water. Sealed to IP66 and tested by MK well in excess of British Standard, it will protect you and your electrical supply in the unfriendliest of environments. In addition to its ease of installation, the range is aesthetically pleasing with a modern, slim and curved design, allowing the switches and sockets to blend easily with their surroundings.