This is no ordinary nylon. Our nylon chews are made from Dog-Safe™ materials that are hard and long lasting. Nylon chews have a unique advantage over real bones. Not only do they satisfy the frequent urge to chew, but they are safer than real bones and sticks - they won't break or splinter, all while they help keep teeth scrubbed clean. All of our chews are made in the USA from materials sourced in the USA, free of phthalates, latex or BPAs. Our unique designs are made to spin and rock to be interactive. We also include channels and grooves in our designs so you can spread enrichments like peanut butter and cheeze spreads for an added treat. Designed to be paw-friendly, our chews are easy for your 4 legged pals to pick up and orientate. SimpleDog™ products come with a lifetime replacement guarantee. If it gets destroyed, just send us the pieces and we will replace it!