SINGLE PLAYER LOGIC GAME: Grecian Trick Lock is a single player logic game that requires you to use a creative, less straightforward thought process to solve the puzzle. The solution will be challenging. Difficulty level is 3 stars. IMMEDIATE PLAY: Grecian Trick Lock is playable immediately out of the box. Grecian Trick Lock set up is easy, but difficult to master keeping you entertained for hours. QUALITY MATERIALS: Grecian Trick Lock is made with real metal components. GREAT BRAIN TEASER GIFT: The Grecian Trick Lock makes a perfect birthday, holiday, Christmas or random gift for anyone who loves the challenge of a good brain teaser.