Thank you for viewing. This listing is for a set of two used Plarail motor units, "2-Speed for Size D Batteries." These units have been disassembled, serviced (including an overhaul of the motor internals), and reassembled on the chassis, with their running condition confirmed (they run normally, including uphill, but the motor output is unknown). One of the two units has significant sun discoloration (there was no damage to the housing during servicing). While there may be individual differences, there may be traces of disassembly on the top cover and housing, so please refrain from purchasing if you are sensitive to this or if you are looking for a perfect product (the attached photos are of the actual items). Please note that we are not considering price reductions or selling items individually. Thank you for your consideration.