ChewRoots are a sustainable natural wood dog chew toy.Natural ToothbrushExtremely DurableLong Lasting100% UntreatedHarvested by hand from tree roots, in protected areas to ensure there is no damage to the roots system of the trees or forests, only the tuber of the root is harvested which then sprouts again, making them eco-sustainable.They are limited to a responsible number each year.The average weight of this chew is 400 grams but will vary as it is a natural product.