Walthers Mainline HO scale Thrall 5-Unit Rebuilt 40' Well Car — BNSF #238137 (Walthers item 910-55641). Condition: Used — excellent. Run three times on a professional layout, then stored back in its original box after each use. Fully assembled with RP-25 turned metal wheelsets and Proto MAX metal knuckle couplers. Original Walthers Mainline box included. This is a 5-unit articulated well car set (units A–E) in BNSF paint. No known defects. Please ask any questions before buying. Shipping from San Jose, CA 95126.