I usually buy Amber and Ruby's toys at tufftoys.com because there is a rating on each toy and they are super tuff. Ambers favorite are the duck and dinasaur (both rated 9 for heavy chewers) and the octopus. They are large sized toys and so far Amber has not been able to destroy them like all the others. None of them are showing any signs of wear and my bullies play tug of war with the daily. Antlers are a must for chewers. Good luck.