I've been curious about these everlasting treat toys that I've seen at Bark for months now. About two weeks ago, I broke down and bought one for Angel and Ana to share. It's almost like a rubber ball that has the ends shaved off. You're supposed to insert the everlasting treat inside, or can put food in the middle. They don't last very long--maybe ten minutes top, but the dogs have a great time with it. I wouldn't buy it for my own dogs again, but they make fun gifts for the dogs who have it all and are bored.