Estes Rockets - Tandem-X Rocket Launch Set, Amazon (E2X) & Crossfire ISX (Skill Level 1) Batteries Universal 4G FHSS-1 Receiver

4G FHSS-1 Receiver

Fits motors with a can diameter of 1

6V / 1800mAh w/ Balancer Plug)

Improves power transfer efficiency and lessens the likelihood of motor overheating

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

Estes Rockets - Tandem-X Rocket Launch Set, Amazon (E2X) & Crossfire ISX (Skill Level 1) Batteries Universal 4G FHSS-1 ReceiverTwo 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