The seller made it up to me with credit toward another item. I’m sure this toy would work for other dogs but mine decided to eat the yay, not just the kibble.I was excited to find this toy to help keep my dog occupied for a while. The first time was great. She pulled the kibbles of food out of each section. Then, she just chewed all of the grippers apart so it wouldn’t hold food anymore. Fun for her while it lasted.The green one the dog rolls to get treats/kibble out of. A few comes out with each roll, if you fill it to the max. So each roll they will enjoy My dog loves it (and Keeps him occupied)! The teal one I put a few kibble in and top it with peanut butter or spray cheese. As the kibble is harder to get out Both pretty durable. Both tiny and big dog like it (they fight over them lol.)We have a 3 month old Golden retriever. It did not take her long to get the hang of the treat ball. She loves it, as do we! It slows down her eating and gives her a fun activity to do. It holds a good amount of her puppy food. I’ll eventually have to check on finding a larger one. ;)Balls are wonderful for aggressive chewers at need to be challenged while being bored. This ball is all rolled into one. Very durable. Slits in zigzag ball a little hard for my pups to get all treats out. Not necessarily a bad thing but you will have to clean them out to reuse. I have 2 newfoundland and I had to buy another set because they both wanted the same one. LolLove the ball with the teeth. My dog had a lot of fun with this ball.My puppy enjoys playing with these, although she cant quite get her treats from the blue toys teeth yet. She licks the treats. Which for me leaves a yucky mess ?Well she is hard to keep entertained and so far without any treats inserted she hasn't stopped playing with the teal one. I think the green one might be to big for her but we will see.My dog does love the green ball even though all he has to do is roll it around to get the treats out...he is not that bright so it works for us. I have been cutting up small baby carrots into discs and putting them in (carrots are his favorite) and he goes crazy for it. He also likes the blue ball with the spiky fingers, but he ended up pulling the ends of some of them and he may or may not have eaten them. This was when the treats we filled it with were a little too difficult to access; he just started clearing a path to the food by removing pieces of the spiky fingers...so that's not great. He does enjoy them overall though. He is a 20lb Chihuahua, Rat terrier, small poodle mix for reference.They are great, exactly as discribed. My puppy loves them ☺️