Koa gets bored easily and goes through his toy basket often. I know he loves peanut butter. You put the peanut butter inside and its really difficult to get out, so Koa stays and works on it for a long time. Super perfect when I go out on errands and Koa wants to come with..., perfect distraction for me to get out the door! Workn great and super durable so far !I bought one for my pug to keep him busy. I came back and bought two more the the other two. My dogs love these balls. It is a delicious treat with peanut butter in side the ball. Made in USA is a tie breaker for me.We have a Belgian Malinois/German Shepherd mix. This is our third Jolly Ball product, and the third one we’ve had to return. Within five minutes our dog chewed two of the nubs off this toy-and I had put peanut butter in it! I am disappointed because he loved them while they lasted. Even supervised while we played with him he was able to tear these toys. Maybe these are best for an older dog who is less intense when they play?