Estes Rockets - Mini Bertha Starter Set Electric Motors Helicopter The propellant tank can be

The propellant tank can be expanded with a movable ball

1/8 Monster Truck

You will also need 6

*2: When using at the front

Hot Racing light weight hardened steel 70 tooth

Estes Rockets - Mini Bertha Starter Set Electric Motors Helicopter The propellant tank can beThe Mini Bertha Starter Set is the perfect way to launch your journey into model rocketry. Designed specifically for beginners, this all in one set includes everything you need to build, launch, and recover your very first rocket with confidence. Inspired by the legendary Big Bertha, the Mini Bertha delivers classic Estes style in a compact design that flies on 13 mm engines and soars up to 650 feet. Easy to build, thrilling to launch, and endlessly