Crayola MF Washable Stamper Kit My First products exceed the industry standards in wash-ability and safety and are ACMI approved by a board certified physician Washable formulas. Large stamp outlines are easy to color in Package acts as storage My First products exceed the industry standards in washability and safety and are ACMI approved by a board certified physician Large stamp outlines are easy to color in Get Started Idea booklet. Package acts as storage