This Antar model is perfect for space enthusiasts and experienced hobbyists who love building and launching model rockets. You can take it to open fields or rocket - launching events. It measures 23.2 inches in length and 1.64 inches in diameter, weighing about 3.7 ounces. With a parachute recovery system, it's designed to come back safely after reaching a projected max altitude of 450 feet on a C6 - 5 engine.