Estes B6-4 Model Rocket Engines Bulk Pack (24pk) - EST1783 Fuel Powered Plane This makes the Ascent-18 International

This makes the Ascent-18 International Scout II Rock Crawler feel planted

Counter-rotating steel CVD center driveshafts for smooth power transfer

there are already many motor upgrade options on the market today that will drop right into this amazing little crawler

Fits 12mm hex hubs and most 1

An ergonomically-designed 2-color polypropylene (PP) and elastomer grip offers secure control of the tool

Estes B6-4 Model Rocket Engines Bulk Pack (24pk) - EST1783 Fuel Powered Plane This makes the Ascent-18 InternationalEngine bulk packs come with all the rocket engine supplies you need to launch 24 rockets. Included are 24 rocket engines, 30 model rocket starters, 24 reusable starter plugs and 75 squares of recovery wadding. Use the A8 3 engine to launch these bulk pack rockets: Alpha, Alpha III, Generic E2X, Wizard, and Viking. Includes: 24 B6 4 model rocket engines30 model rocket starters24 reusable starter plugs75 squares of recovery wadding