Puzzles for kids should be simple and fun as they play a very important role in a child's development. This ALL-IN-1 puzzle is a dual-sided puzzle - one side has a sliding feature and on the reverse side is a Write & Wipe feature which has unlimited possibilities for kids to learn and play! This unique activity set comes with 25+ fun activities that help in various aspects of child development! Slide and Solve the puzzle with popular themes like Animals, Transport, Seasons, Professions, Senses, and many more! The activity book contains 17+ ideas for the parent to customize the write and wipe side to make this into a math learning aid on one day, a language the next, and something entirely different on the next. This activity set comes along with 16 Dual-Sided Puzzle Pieces, 50 Dual-Sided Cards, 32 Page Activity Book, and 4 Write & Wipe Markers. The materials provided in the kit complies with US & European safety standards.