this works great i use this all the time for servicing locomotives and changing out wheels on freight cars

This foam cradle is a must-have tool for any model rail roader. It can hold locomotives and rolling stock at different angles to enable you to install couplers and wheelsets, hand paint small parts or undersides, install small parts, and repair broken parts, engines shells, or rolling stock shells. I use mine each and every time I am repairing rolling stock or locomotives. I strongly recommend this product.