Support iPhone/iPad/iTouch. Full version. All free. Have 12 locks. Luban lock is a traditional Chinese intelligent toy. It is named after Luban, the famous carpenter of the Warring State Period, according to legend he invented this. The inner structure of this toy is very ingenious, therefore it’s easy to dismantle but difficult to reassemble. Careful observation and deliberation are needed to analyze the inner structure so you can reassemble it successfully. Function: There are 12 locks to be selected freely. Operated through finger touch.