Engine bulk packs come with all the rocket engine supplies you need to launch 12 rockets. Included are 12 rocket engines, 20 model rocket starters, 16 reusable starter plugs and 144 squares of recovery wadding. Use the D12-5 engine to launch these rockets: Green Eggs, Big Daddy, Odyssey and more!

ATTENTION: Estes Industries, LLC requires all purchasers and users of Estes® Model Rocket Engines to adhere strictly to all applicable local, state, and federal laws, regulations, and safety standards. The user assumes all responsibility for the safe and lawful use of Estes® products. Estes Industries, LLC expressly disclaims any and all liability for personal injury, property damage, or other loss resulting from the misuse, improper handling, or unauthorized application of its model rocket engines.