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This is designed to prevent the cord plugged into an electric appliance from being dirty and twisted. The so the cord plugged is likely to be twisted. And when not in use, an electric appliance covered with dust is at a high risk of fire. To solve these problems, an electric outlet with 360-degree turn can be recommended. It can prevent the cord from being twisted because we can change its direction when spun horizontally and because it is overturned when spun vertically.
Gyeongsan, Gyeongbuk, South Korea