Estes Rockets - Big Bertha Model Rocket Kit, Skill Level 1 KYO34415T1C Tru-Spin Prop Balancer

Tru-Spin Prop Balancer

5T (1/10 On-road)

9 Rock Ripper tires used on many of the SCA-1E models and provide a firm beadlock and uniform grip around the tire itself

1/10 scale trophy truck and short course trucks (such as Axial Bomber and Vaterra Twin hammers rear)

Flip over or remove the Warlock wheel Adapter Set you can use it as a +5mm 17mm wheel hex

Estes Rockets - Big Bertha Model Rocket Kit, Skill Level 1 KYO34415T1C Tru-Spin Prop BalancerBig 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