The squeaker is totally encased in a tough-donning rubber. When it has some give, know that this rubber is tougher to compress than the usual plush squeak toy. But for dogs the size of the Jack Russell Terrier or larger sized, it’s the most effective squeaky toy available. Extremely advised. https://thcaflower87124.dm-blog.com/33168612/top-soft-dog-snack-pack-secrets