这个“折叠三脚插头”厚度只有1厘米，使用时将下面两插头水平旋转，形成一个三脚插头，再打开后面两个防护挡板，解决了现在粗大笨重的三脚插头，不过可惜这玩意还只是一个概念设计，看视频点这里（需翻墙）。设计：Min Kyu Choi。
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Foldable 3-Pin Plug
This “foldable 3-pin plug” measures only less than 1 centimetre in thickness. To use it, turn the lower two pins horizontally to form a tripod plug, and then open the two protective stop plates at the back. It solves the problem of carrying the bulky and clumsy 3-pin plug that is currently available in the market. It's a pity that this gadget is only a conceptual design. To watch video please click here (MyEnTunnel is required). Designed by: Min Kyu Choi
