This is a Lionel 39543 Texas Special Dummy B-Unit Diesel Locomotive. This unit features die cast trucks, fixed knuckle couplers, metal 3-rail wheels, and requires a minimum curve of O-31. This unit was test run and is like new. It is boxed as new and will be shipped in the original shipping carton. Please check my other auctions as the 11194 Neil young is listed and the add on cars 25757 which includes the 25758 Sounds car and the 25759 baggage car. Please check out all my auctions for this set. Review all the pictures and ask any questions prior to bidding. Thanks for looking and good luck bidding.