This Learning Can Be Fun Preschool Set is a great tool for introducing basic skills to learners in a fun and engaging manner. It has exercises focusing on shape and pattern recognition, matching, and cause and effect. The included pen can be wiped clean so you can practice over and over until you've mastered these early skills. This set is ideal for use at home or work to improve skills in an engaging manner. This set assists with the introduction of basic skills like shape and pattern recognition. The flash cards are laminated ad come with a non-toxic pen that can be wiped clean, meaning the set can be reused.