42 Special Skateboard with special wheels. Batteries have been removed, includes controller, charger and all wiring removed from the battery sets. I threw in some connectors and a spare belt I had. Remember when you when you rewire this, it's a 24 volt system despite having 4, 12volt batteries. You wire two batteries in parallel for a double-cell 12 volt output. Do that for the other pair. Then wire the two sets in series so that the output is 24 volts. Check it with a meter. only then wire it to the controller. Price includes shipping to Sedalia, MO.