This auction is for 2 xt 33 solenoid assembly. appear to have never been taken out of the boxes. The Tri-ang XT 33 Solenoid Assembly is a model locomotive designed for railway enthusiasts. Made by the brand Tri-ang, this OO gauge locomotive is a collectable piece for fans of model railways and trains. With its detailed design and functioning solenoid assembly, this locomotive is a must-have for any railway collection. Perfect for both display and play, this Tri-ang XT 33 Solenoid Assembly is a unique and charming addition to any railway enthusiast's collection.