i would ask what they were trying to do, and then diagnose from there. honestly, all i can say is that they did their job. this carriage comes complete with magnet coupling systems and can be added to other letters and trains. this practice will help to give you that understanding. prices and availability of products are subject to change without notice. since the month has passed, i just wanted to ask if there was any news on the subject? it is the most affordable technique of throwing out just about any tons of rubbish. 