Now in our chewable, bendable, and washable Barefoot Baby-Proof Format! Inspire an early love for the outdoors! A lion is big, and a cat is small. A tree is big, and an acorn is small. A sunflower is big, and a bee is small. Introduce first words while comparing the itty-bitty things and great big wonders we see in nature. Barefoot Baby-Proof books made from a durable, waterproof, nontoxic material that meets ASTM safety standards Washable & perfect for bath time Builds vocabulary and early math skills