My 18 month old dog is still a heavy chewer & I love this chew because it keeps her attention & lasts for days. She loves the red ones & dark blue ones. I'm not sure what the flavor difference is but she doesn't like the teal colored ones very much. They aren't cheap but I think well worth it because of the long lasting use. My 3 year old dog really doesn't sit & chew these but will come behind my 18th month old dog & eat the little pieces that have been shaved off. A good item for large dog, heavy chewers

Pros: Long lasting

Cons: None

Our redbone coonhound shepard mix loves these Hercules bones. They keep her out of trouble by focusing her chewing energy. They also last a very long time, even with high energy chewers. She is 72 lbs and we get her the wolf size. I only gave it three stars for training value because the purpose of this chew is for dental health, not training.

Pros: Dog loves it, long lasting, relatively unmessy

Cons: None

For my medium sized chewer I got a couple of these Hercules bones. Because they are flexible I found they were able to chew off little tiny pieces that I had to pick up after she chewed. Seemed to enjoy the shape but lost interest in it after a week. This comes in a large size so it would not be best for a smaller pup.

Pros: Dental cleaning nubs, shape

Cons: Broke off little pieces

I am constantly looking at different products that have the dental benefits after having my dog in for dental work on 3 occasions. She will not let me brush her teeth. This product has worked fairly well at helping prevent buildup and tartar, etc. Easy to wash off. Very durable.

Pros: good product, works

Cons: none

I tried a Hercules with my dog when she was still a puppy and not a heavy chewer (or so I thought). She loved the toy, but unfortunately was able to destroy it by pulling pieces off within a very short period of time. The label says that it is not designed for powerful chewers, so I guess I underestimated the power of my dog's chewing ability. I liked the product and I wish they made a more durable version for heavy chewers.

Pros: Good for tartar removal

Cons: Not for strong chewers