The cards are sturdy and have held there shape. The print is very crisp and clear. Suitable for kids aged over 3 year-old. Manufacturered by Toyvian. Learning cards can be connected to a mini bookit will be easy to carry. Kids are fascinated as colorful the images spring up then slowly fade away. Kids can doodle it again and againmomy and daddy will not be worry about the mess! Perfect to develop childrens brain and exercise their cognition ability.