Green & Wilds Chewroots are a sustainable natural wood dog chew toy. Harvested by hand from tree roots in protected areas, to ensure there is no damage to the root system of the trees or forests. Only the tuber of the root is harvested which then sprouts again, making them eco-sustainable. Composition: 100% Natural Wood. Analytical Constituents: Protein: 1.18%, Fat :0.11%, Crude Fibre: 66.67%, Ash: 1.06%, Sodium, Magnesium, Potassium & Calcium.Small Weight: 150g - 300g