For Balance. With the help of this crystal, you will be able to balance both the negative and positive energies in your life. Also known to give you the boost to stay motivated and on track to achieve the goals you have set out. Holds approx 450ml of water. Include bonus neoprene water bottle cover. We use Borosilicate glass which is lead free, BPA free and more resistant to thermal shock. Bamboo lid & base. Sustainable & reusable.