4 evolutionary puzzles with 9, 12, 16, 20 pieces. The theme of the illustrations is a little..chilly, but you can discover hidden and very interesting things! Complete the puzzle and then discover details on each image with the help of the filters. The blue filter will help you see an image, and the red one will take you on a different adventure, looking at the same puzzle. Recommended age: + 3 years. Made of ecological, non-toxic cardboard, according to EN71&ASTM regulations. WARNING: Contraindicated for children under 3 years, contains small parts, choking hazard. To be used under the direct supervision of an adult. Manufacturer: Londji, Spain. Illustrated by Aina Bestard