Turn-Lock is a combined door handle and coded lock that can be used with common glass doors. Nowadays, the glass door is widespread used, especially in offices and shops. However, people get used to lock around the glass door handle with a chain or U-lock. Obviously, that is very inconvenient. Turn-Lock could solve this problem quite easily. It combines door handle and coded lock that people no longer need to think twice about where to store the chain lock or U-lock. So it is much more convenient and safe.board
