We're fostering a dog that we believe is lab and greyhound mix. This boy chews toys up faster than we can buy them. He destroyed a tennis ball in under 20 minutes! He loves these Gobstoppers. They are solid which stands up to his strong bite. They must be flavorful because they keep his attention for hours; and we feel good about giving them to him knowing that they're all natural. The value for the price exceeded our expectations. We highly recommend this product for any dog who enjoys chewing/bones.