BORDSTRACTHand Crank Generator 3V~6V Handheld DC Driven Dynamo Mechanical Emergency Power Supply School Educational Generator Kits with LED Light and Clip Cords

Hand Crank Generator 3V~6V Handheld DC Driven Dynamo Mechanical Emergency Power Supply School Educational Generator Kits with LED Light and Clip Cords

Jadeshay Wind Electricity Generator, Mini Wind Turbines Generator Vertical Wind Generator Kit DIY Teaching Science Education Experiment Model DC Micro Wind Turbine Motor Blades Suit for Boys and Girls

GTIWUNG 8Pcs DC 1.5-6V 15000-16500RPM Mini Electric Motor for DIY Toys, 8PCS Mini Boat Switches, 8PCS 3V 2AA Battery Holder, 2PCS Red and Black 22AWG Cable 1m, 16PCS Croc Clips