The Estes Model Rocket Engines Sizes 1522 C11-3 is a single engine for use in Estes model rockets only. Engine is C11/D size (2.75" long x .95" diameter) for use with model rockets that weigh less than 6 ounces, including the engine. Each package of rocket engines includes 2 engines, 2 igniters and 4 igniter plugs.
ATTENTION: Residents of California, New Jersey, Rhode Island and North Dakota please review the Terms of Sale for state specific restrictions on model rockets.
ATTENTION: Estes products may contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm