MiDeer Cognitive Cards Based on the CognitionThe kit contains 16 learning cards for learning about colors, numbers, shapes, opposites, different times of day, seasons, and parts of the face. Cognitive flash cards are combined with children's life scenes, which allows children to learn by using fun games. Smooth touch, round edge, and easy to understand, in accordance with the cognitive development of children. Material: Paper Environmentally friendly materials, safe. Cards size: 12. 4 x 18. 6cm