The Estes 2183 Model Rocket Kit is a great way to learn how to make model rockets. Completed kit measures 17.7" tall x .1.33" diameter. Weight (without engine) is 1.8 oz. Needs the following to fly (sold separately): Estes Recovery Wadding Estes Rocket Engines (one per flight). Recommended Engines:A8-3 (First Flight) , A8-5, B4-4, B6-6, C6-5 Glue, Hobby Knife and Hobby Paint. Launch Pad Launch Controller Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. 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.