This lot contains 71 Q-BA-Maze 2.0 interlocking cubes and 19 marbles. It also includes instructions to get started on building and experimenting with different structures. The brand of the cubes is MindWare and the recommended age level is 3+. These building toys fall under the categories of Toys & Hobbies, Building Toys, Building Toys & Blocks, and Building Toy Complete Sets & Packs. Get ready to challenge your creativity and engineering skills with this fun and educational set!