The Zoo Med Vita-Sand is an all natural vitamin-fortified calcium substrate that’s excellent for bearded dragons, uromastyx lizards, monitors, geckos (including leopard geckos), and desert tortoises. It increases calcium delivery in all desert species of reptiles and does not contain fat-soluble vitamins which can be toxic in large doses. The sand is an ultra fine grade to help prevent impaction from over consumption. Outback Orange. 10 lbs.