A
toy train is a
toy that represents a
train. It is distinguished from a
model train by an emphasis on low cost and durability, rather than
scale modeling. A toy train can be as simple as a pull toy that does not even run on track, or it might be operated by
clockwork or a
battery. By the way, many of today's model trains might be signed as toy ones as well, providing they are not strictly scale ones in favor of a robustness appropriate for children or a reasonable manufacturing.