The Estes Bull Pup 12D Flying Model Rocket Kit teaches kids age 10 and up about physics and aerodynamics. The 7000 Bull Pup Rocket is a realistic scale model of the USAF AGM-12D air-to-ground classic 1960s rocket. Made of plastic and balsa wood and decorated with decals, it soars over 675 feet on Estes C motors and returns to earth on a colorful parachute.