The exquisitely engineered Astron Explorer is a model that you’ll want to add to your collection of Estes rockets. First, this kit will test your crafting skills. Then, using the same laws of physics that have launched man to the moon and now NASA’s InSight Lander to Mars, you’ll send your Astron Explorer skyward — to well over 1,000 feet with an Estes E12-4 engine (not included). The intricate design of this rocket features side-pods with ejection gas duct vents. The kit also includes a jig for perfect alignment. The Astron Explorer will spur your imagination and bring out your inner-interplanetary adventurer.