My standard poodles did not hesitate to attack this toy and chew on the treat for hours! Great way to keep them from getting bored and for tiring them out. They would not even put it down to go outside, so they took it into the yard. Unlike some other toys which they abandon in the grass, they brought the bento balls back inside to continue the fun. And they are both aggressive chewers, but there is not a mark on the bento ball, just an ever-decreasing treat! Will continue to replenish the treats as this is their favorite toy!

these are great fun for your dog. the toy is made out of what feels like a almost gell like rubber? this makes it very soft to chew on but is unbelivablly strong. the replacable treat center only adds to the enjoyment. if you have a large dog, i would def