We have five dogs ranging from 18lbs to 65lbs and different breeds (Boston Terrier, a Spitz mix, and three Goldens) and they all love their moose antlers! The tines get swapped around and keep the dogs occupied inside, especially during this high summer heat when we can't be outside playing or training. These will last a while, too, I can already tell. They've only worn the edge in the past couple of weeks.