Kids will love learning out to make their own electric motor! Let kids explore the basics of electro-magnetics with this fun science kit from Scientific Explorer. This kit lets kids build their own working motor, install it in a mini-boat, and cruise their boat around in water! This science kit is a great educational gift for kids 8 and older. Electric Motor Kit includes:Spool of wire,Propeller,Boat,Motor base,Rear spaces,Front spacer,Spacer ring,Spacer cap,Battery holder,2 magnets,Sandpaper,Compass needle,Motor shaft,3 battery contacts,3 armature contacts,2 brushes,10 armature plates,16-page instruction manual