Estes Rockets - Tandem-X Rocket Launch Set, Amazon (E2X) & Crossfire ISX (Skill Level 1) Batteries Universal the standard 12mm hex design

the standard 12mm hex design will accept your favorite aftermarket wheels and tires

Fits motors with a can diameter of 1

High torque dual motor and gearbox reduction design

it was a fixture on the global rally circuit from the 1950s through to the 1980s

caster blocks

Estes Rockets - Tandem-X Rocket Launch Set, Amazon (E2X) & Crossfire ISX (Skill Level 1) Batteries Universal the standard 12mm hex designTwo is better than one! This exceptional rocket set features a pair of extreme, high performance rockets and a launch system. The E2X Amazon is as imposing as the name sounds. This giant stands almost 30 inches tall, and is quick and easy to build! A black body tube, precolored plastic nose cone and fins, and tiger striped self stick decals make building this rocket easy to do in about an hour. When flown on standard engines, this huge rocket can