My secret lock is a perfect gift for yourself or your friends and family. Just solve the puzzle and you can unlock the lock! Game Play Information: Number of players: 1 to 2 Age of Players: 8 to 99 Years Skill level: Advanced Time to Learn in Mins: Information Not Available Time to Play in Mins: Information Not Available Profanity: No Batteries Included: Not Required Battery Details: Choking Hazard: No Additional Information: Publisher: Go! Games Item ID: 400069568686 Product Dimensions: 3.75" x 4.6" x 3.75" Language: English Country of Origin: CN