Estes 5326 Rocket Science Model Rocket Launch Set – Beginner STEM Kit with Engines, Launch Pad, Controller & Mini AltiTrak This long-lasting battery powers lanterns

This long-lasting battery powers lanterns and other high drain

and removable jaw pads to help reduce marring

The towel bar is 5½ inches long

Easy to use and easy to slip into a backpack

Includes band and connection adapters only (Apple Watch / iWatch and tools required for length adjustments are not included)

Estes 5326 Rocket Science Model Rocket Launch Set – Beginner STEM Kit with Engines, Launch Pad, Controller & Mini AltiTrak This long-lasting battery powers lanternsAre you ready for a high flying adventure with the "Rocket Science" model rocket kit? It has everything you need (except batteries) to launch and track your rocket! Includes: One Model Rocket Kit, Porta Pad II Launch Pad, Electron Beam Launch Controller, 2 different Engines (with Plugs, Starters and Wadding), and Mini AltiTrak altitude tracker. This kit is the perfect way to have fun while exploring STEM (Science, Technology, Engineering, and Math)