K'NEX Motor Red Battery Powered 2 Piece 45 RPM New In OEM Package. Came from "Dragon's Revenge" set but can be used anywhere you decide. Let me know if you have questions or want more photos. Thanks for looking.

The two parts can be joined together to create a powerful and versatile K'NEX motor. As used in some recent K'NEX roller coaster sets.

Medium speed - approx.45rpm. Requires two "AA" batteries (not included).