These are moulded foam donuts that help support the tyre for stable performance

Max Output Power: 115W

with chamfered edges and a laser engraved logo

Clear overspray film and pre-cut vinyl window masks to make painting fast and simple

Estes Rockets - Big Bertha Model Rocket Kit, Skill Level 1 Hardware & Fasteners Washers These are moulded foam donutsBig 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