When Thatcher and Ellie were little we didn't really consider the mold growing inside their bath toys. These little guys have large holes that discourages mold growth as they can dry thoroughly and they are easily sanitized with a trip in the dishwasher. Made from plant-based natural rubber, they are environmentally responsible. Their chunky size and shape fits little hands perfectly. Squeeze, squirt and squish away in the tub, pool and at the beach.