This is a wire dog crate made by Precision. The size of this crate is large and fits dogs up to about 75 pounds. This particular dog crate has two doors, so that way you can place the crate whatever way it may fit in the area you are placing it. The doors even have two locks, this is to ensure that the doors are locked. The crate does come with a divider you can place in the crate. That way you can make the crate 'larger' as your dog grows.
The crate does fold up and is portable and easy to take along while traveling. The tray is removable. This is helpful in case your dog has any accidents and you need to remove the tray to clean it off.
I have gone through two of these crates, I think the plastic trays are extremely cheap and tend to crack very easily. You can order replacement trays, but they cost just as much as a new crate.
I highly recommend crates and I think everyone should at least attempt to crate train. The dog thinks of the crate as their home!