With this educational piece, you can see firsthand all of the stages of a life of a frog. The block features real-life samples of an egg, tadpole, metamorphosis-stage frog and adult frog. All of this is nicely presented in an acrylic block. A fantastic addition to any science classroom. Acrylic block measures 4.3 inches wide, 1.75 inches tall, and 1.2 inches thick. {Rana catesbeinana}