This AC WORKS brand wiring device [ASL630P-BK] is made of a very durable construction able to withstand impacts, chemicals, and weather. It has a weather-tight seal and strain relief structure with SJT, SJO, SOO, STW, 12/3, 10/3 or 8/3 cable. This adapter also features a locking male plug, preventing items from becoming unplugged when in use.