Not as "Dura" or "Chew" as it says... I bought this thinking it was a chewing teeth cleaner which the dog could eat - ATTENTION AMAZON SHOPPERS! It is NOT. This is a Toy for the dog to chew on yet it is sufficiently chewable that the dor can eat it soon enough - specially if he is a dedicated expert chewer like my GSD - so really the toy beats its purpose if it ever had any. In less than thirty minutes my dog ate the dinousaur's spikes... I do give it to them under strict supervision tho, to throw and what not since I already spent the money - poorly- but what else can I do. Santa Clause through Amazon does not take returns. I do not recommend this product as it is not safe. It is made of plastic, do not be fooled like I did by its white color I really thought it was a sort of bone. So, if you're looking for a good teeth cleaner, keep looking!! Here's how I take care of my kids- Regular cheap rawhide still the best with Virbac's mouthwash every other day, pedigree dentastix when I get to buy some and good raw bones and meat once a week or month. I'll keep looking for alternatives!