I bought one of each size. My dog enjoys playing soccer with them, batting them around with her paws, but they are NOT soft enough for her to bite them and carry them. She is a 40 lb standard poodle. I imagine they are just fine for a 60- 80 lb dog with larger jaws. If I step on one and put my full weight on it, it gets just about small enough that she might be able to get her jaws around it, but it takes my full weight. Have they changed the material used? The balls in the illustrations are opaque, what I got is semi translucent. I was hoping I could use them to replace the half deflated real soccer ball that is falling apart she loves to chase, pick up, and bring back. I'll keep looking for a better choice for that, but will keep these for her to kick around.