An adorable Board book that celebrate Piggy and Bear learning to wear big girl and boy underwear! No more Diapers! Comes with 16 different colors of Chunky Cardboard underwear that you child fits into slots that match Piggy's or Bear underwear for that day. (There are eight cardboard pieces one pattern for each side totally 16 pairs). Piggy has pretty patterned panties and Bear has Cool pattered boxers. It is a fun book for your potty-trainning toddler.