Quote Originally Posted by Karl_H View Post
Rather than ask, I Googled:

What is a railroad skate?

A heavy-duty device designed to slow moving rail cars, or hold standing rail cars, even when on a slight downgrade. Built for rugged service, especially in classification yards, where long and very heavy trains are assembled.

$275.00 a pop - delivery by Nov 7.
Sounds like a wheel chock.

Neil