●Made from robust nylon - Durable dog chew toy that challenges even particularly aggressive chewing dogs and helps satisfy a dogs natural chewing instinct. ●Promotes dental health and hygiene in dogs - Grooves and nubs help prevent plaque and the formation of tartar in dogs during chewing. During chewing, tiny bristles appear on the bone, which, like a mini toothbrush, help keep teeth clean and healthy. ●Fun and activity: Nylabone chew toys provide activity for dogs while satisfying their natural chewing instinct. They also help relieve stress, restlessness and boredom. ●For large adult dogs - Large chew toys for adult dogs weighing up to 23 kg.