The original 1950’s cereal premium is back,
thrilling modern kids as it surfaces and dives
again and again—powered by household baking powder! Simply fill sub with baking powder (not included) and safe, non-toxic gas forms, making it buoyant enough to surface. Ages 6 and up. 4 1/2"Lx1 3/4"W. SMALL PARTS. Not for < 3 yrs.