These cute animal friends are unique because every piece of the puzzle is sponge-filled, not hard. From the cotton rings that make up the animal bodies to the adorable velour head that tops it off all the way down to the post itself, these toys are not only entertaining but also safe. These stacking toys come in six colorful animal styles, frog, duck, dog, bunny, elephant and cow. Each hides a rattle inside its head and is adorned with a crinkly collar.