Small cards with a wealth of knowledge! Side A to paint, side B to get to know. Turn on your child's left and right brains at the same time.Magical ★and eco-friendly water paintingHelping children sprinkle their creativity,One water marker is included with each flashcard box. By adding water, the marker can paint and write smoothly. Once the cards are dry, the writings disappear, so they can be used over and over again. It's money-saving and eco-friendly. ★Untearable material for durable use The cards are made of high-quality paper material, non-toxic and eco-friendly, safe and durable to use, not easy to shred or break. ★Train kids skillsA good tool for training brain-hand coordination skills, improve dexterity, color awareness, expand knowledge, a good toy for kids and parents. ★Easy to teach It was made of Heat Transfer Technology printing, which has bright colors and realistic. There are 5 different themes for options: Vehicle, Animals, Fruits & Vegetables, Easy Math & English Letters. These cards areClose to life and easy to master. The bright color on the card can easily attract children's attention. MaterialsPaperTopicsVehicle/Animal Kindom/Animal World/Fruits & Vegetables/Fun Math/English LettersPackage ContentsIndelible Scrawling Cognitive Flashcards × 1 Box(40 Cards Per Set)Water Marker × 1NoteDue to manual measurement, please allow slight deviations in the measurement. Due to different display and lighting effects, the actual color of the item may be slightly different from the color displayed on the pictures.