Castle for drinking

The concept is simple. Even very simple. At least in this case. Those who once had to "miss the mark" by key keyhole must understand. If the lack of electricity in the stairwell, fatigue or any other objective reasons do not allow to discern a small opening - a concept «V Lock» is not exactly pomeshaet.

This concept can talk, explaining ideas designer named Junjie Zhang, but you can just show the photo, which, combined with the name of the invention, give all the secrets right away. The thing, you see, in the V-shaped threads that send key, no matter how uncertain was not the hand of its owner. In general, a trifle, but nice, what can I say.

Source: trendsblog.ru/2010/05/v-lock-skvazhine-ne-uvernetsya/