Monkey Pod Games Enigma Collection: A Premium Metal Brain Teasers Gift Set- Set II (1-1-3) Challenge friends, family, guests, clients, patients or even yourself with these mind-bending puzzles. Four great metal brain teasers in their own hand-crafted wooden box. Includes access to a detailed solution. Great for students, adults and children over 8 years old. Develops creative thinking and problem solving skills.