Hey before I had rodents, I'd never heard of the stuff either LOL. I can do better than describe it....here's a picture of the label on our stuff over here.



This is what it looks like installed in a plastic rat tub.



Basically it's just a wire mesh that comes in various types for different applications. The one we use for rodents is a welded stainless wire one. You can also buy this one with rubberized coating but the rats will just chew that right off so why pay extra for that LOL.

Here's a link about hardware cloth...

http://www.twpinc.com/twpinc/control...y_id=TWPCAT_14

It's heavier grade than chicken wire which rodents can easily chew through and it doesn't rust. Over here it comes in 1/2" and 1/4" sizes in most hardware or home stores. 1/2" is good for regular rats, 1/4" for mice and ASF's.

Any other questions, please don't hesitate to ask.