Big Ben 3D Puzzle is an educational and eco-friendly toy will help improve children's concentration and creativity. Our product is high-quality in material and standards. Children can enjoy exploring their curiosity and imagination while training their logical thinking, motor and problem solving skills. We provide easy to follow step-by-step instructions. Our 3D puzzles are not only limited to children but also they are great for families of all ages. Our paper and foam board puzzle pieces fit perfectly together and glue and tools are not required!