The Himalayan Wood Ruff Bone is a 100% natural toy that serves as an alternative to rubber or plastic toys. It's solid olive wood, hand harvested, eco-sustainably sourced and is designed for your aggressive chewer! The wood is soaked in olive oil and gently cleans teeth and promotes fresh breath. It is hard enough not to fall apart but soft enough to mulch. It doesn't stain or smell and is great for dogs in all life stages. The small bone is suitable for dogs under 20 pounds.