As someone who has two pit bull mixes and fosters pit bull puppies, I'm always on the lookout for extremely durable toys. The Galileo is probably the most durable toy I've come across. Unfortunately, none of my dogs or fosters are that interested in its shape. I'm sure that's not true of all dogs, though. I think if the NylaBone company were to add an attractive liver scent or try a different shape but use the same technology in production, this would be a real hit with my dogs.

Pros: Lasts forever!

Cons: My dogs just don't find it that interesting

My girls love these bones and they last a long time. I have 2 dogs who chew them all of the time and one will last us a few months. My dog has Stomach problems and this bone does not aggravate her sensitive stomach.

Pros: Satisfies the urge to chew.

Cons: None

This is a great chew toy for the mastiffs (I have 5). They will last a long time and are good for their teeth. You have to throw them away when they are about half-eaten because they might choke on them.
The only annoying part is the loud noise they make when they chew them--especially if you are trying to watch TV.

Pros: lasts long, good for teeth

Cons: loud noise

My dogs love this bone. They destroy other bones within a day, but this one lasts a long time. Great for powerful chewers.

Pros: Very Durable

Cons: Doesn't last forever

My dog usually loves Nylabone stuff and she started out liking this and then just left it alone. I would guess it was because it seemed a little akward when she was trying to choose it.

Pros: durable

Cons: dog was iffy about it