The product is 100% natural , it helps dental hygiene thanks to its nutrients and minerals, suitable for dogs of any age. They are not sticky, they are odorless, and can be chewed even after a prolonged break without causing stains. Its average duration is 5-15 days (depending on the dog). The horns are made up of about 54% calcium , which is great for the bones. In addition, 44% is organic matter - mainly protein compounds in which rich minerals are incorporated.