My very large, very strong,12 month old dog is a major chewer of everything. I wish I had bought a Kong 6 months ago. Have the XXL Extreme and it's brilliant - the only thing she hasn't managed to wreck!!! She loves to play with it, eat out of it (altho that doesn't take long to empty) and sleep with it! Brilliant invention
It has to be a great product, when it can reduce the speed that a labrador can eat! Entertains the dog & the human audience watching the efforts to remove the treats from within.
Recommend buying a size larger than you think your dog will need, as due to the very thick rubber wall construction, there is less space for treats than the standard (red) Kong.