These treats are made from 100% natural pork bone. Each yummy bone features genuine Serrano ham for a delicious flavor. These bones are dry-aged for 12-18 months for extra strength that will engage your pup and give him something to work on. By dry-aging these bones, they become three times stronger than their oven-baked counterparts. Provide your furry friend with long-lasting enjoyment that will keep them occupied.Indulge your furry friend with Country Kitchen CK Serrano Ham Bone Dog Natural Chew Treats. These bones are dry-aged for 12-18 months, making them three times stronger than oven-baked bones. Your furbaby will love gnawing on these long-lasting treats, guaranteed to get their tail wagging with joy. Plus, you'll be happy to know these genuine Serrano ham bones are packed with your pup's favorite porky flavor. As pet parents, you want the best for your furry family member, so why not give them something they'll truly love? From the Country Kitchen to your home.