The Neato! Diving Submarine Toy is a unique science-powered STEM-style water toy. This 4.5-inch silver-colored submarine is powered by baking powder. Made with high-quality, nontoxic plastic and featuring an authentically detailed submarine design. Has automatic diving and resurfacing action, giving it realistic movement. Comes in an educationally informative peggable blister packet. Learn how to identify 8 different parts of a submarine with the color-coded diagram.