This set of 25 Make-Your-Own Caterpillar To Butterfly flipbooks is ideal for classrooms, parties, camps, sleep-overs and group activities of all kinds. Includes 25 sets of pre-drawn perforated flipbook sheets, clips for binding, and instructions. Your 25 sets of sheets make 25 30-page flipbooks showing the metamorphosis of a caterpillar becoming a butterfly! No glue, scissors, tape or staples required. The only things you add are creative energy and markers (color pens or pencils, etc.)