Estes Rockets - Big Bertha Model Rocket Kit, Skill Level 1 KYO34415T1C 5T (1/10 On-road)

5T (1/10 On-road)

These will fit any standard 2

making it more stable on low grip surfaces

Tru-Spin Prop Balancer

(first launch)

Estes Rockets - Big Bertha Model Rocket Kit, Skill Level 1 KYO34415T1C 5T (1/10 On-road)Big Bertha is an Estes original! She's an all around Estes favorite that has truly withstood the test of time. Over the decades, Big Bertha has been most modelers' first big build. If you've never flown a Bertha, get one and launch it. Once you've flown it, you'll take it to every launch! The Big Bertha gives you a slow, realistic liftoff. What a thrill it is to watch! Propelled by powerful standard Estes engines, this beauty travels to 500 feet and