This kit includes a reversible frog puppet and three books. It originally had another frog puppet, but it fell apart (the cheap puppets from Discount School Supply don't last long). There's also a handout that goes with From tadpole to frog but I did not include that in the list of contents.
Sources for materials
Folkmanis tadpole to frog puppet (no longer available)
The Croaky Pokey! by Ethan Long: 9780823424290
From tadpole to frog by Wendy Pfeffer: 9780062381866