This is the Electron Beam Launch Controller for Flying Model Rockets from Estes. Suitable for Ages 10 & Older with Adult Supervision for Those Under 12.FEATURES: Completely wired, no assembly required For the ignition of Estes model rockets (Estes launch pad required) 15 ft launch cable Instructions and safety code Full one year warrantyINCLUDES: 1 controller 1 safety key 1 15 ft launch cableREQUIRES: Four AA batteries (FUGP4304) Adult SupervisionCOMMENTS: Due to small parts that could cause a choking hazard please keep away from children 3 years of age and younger For your safety and enjoyment, always follow the NAR Model Rocketry Safety Code while participating in any model rocketry activities sdw 6/19/01 ir/jl updated tlc 1/10/13