Kidwind Wind Turbine Hubs, To Turn Any Dc Generator Into A Wind Turbine, Each

Details:

Recycled plastic made 12-hole crimpingpress fits onto shaft of small dc generators to generate wind powerallows blade angles and/or interchange blade sets to be changeddiameter: 5.7Cm (2.25 In.)Max number of dowels: 12size of shaft hub press fits onto: 2mmrecommended for college and high schoolwarranty and services5-year limited warranty