The Hasbro Cityville Kre-o building toy, Dr. Mayhem's Jewel Heist, contains 36 pieces of bricks and blocks to create a unique puzzle. Featuring the character Mayhem from the Kre-o Dr. Mayhem's Jewel Heist set, this toy is designed for children ages 6 and up, with a mix of multicolor plastic pieces to build various structures. With a robot theme and manufactured in 2013 by Hasbro, this toy is compatible with other Kre-o sets and offers a fun and creative building experience for both boys and girls.