價格：免費
檔案大小：14.3 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Do you have enough concentration to shut the lock in difficult combinations? How difficult locks can you shut? Try it and prove your iron concentration!
Play the single player and see how good you are compared to other players.
With the multiplayer you can play with friends directly on one device, make decision based on who can shut faster the locks! :o)
支援平台：iPhone, iPad