TOUCHABLE KEY / Industrial design

There are some troubles with the blind people when they take out the keys to unlock the door. They can not see the key at all, so sometimes they will make a mistake about the two sides of the keys. The TOUCH-ABLE KEY solves the problem by put some raised bumps like the Braille. By touching the raised bumps, the blind people could know which side he or she is touching. In addition, the number of raised bumps could help the blind people distinguish from different keys.