This is a combonation lock with a twist, it's output is coloured wool! And... It's Stackable!!! Simply import it into a world with MCEdit, Set a code and you are done. You can set a code by: A) (Easy) Change the postion of the glass and quartz in the back memory "Tumbler" to change the default code or B) (Harder) Change the coloured wool output. Some important infomation is when imported one of the segments will not work (WIP) so delete this one and add another one. If you are wondering, "Why are you spelling color "colour"? Answer: I'm from the United Kingdom.