Odor-free, stain-free, clean tasting, 100% Borosilicate Glass with real wood friction-fit lid.Colorful silicone Pedestal prove a no-slip grip and make it easy for kids and gueststo identify their own tumblers. Removeable Soft Insulator sleeves make the glass perfect for outdoor use as it will keep their hands dry.And the insulated sleeves will be eco-friendly and removeable when you wash them.Tronco glass water bottle can be used to fill many kinds of liquids, such as cold / hot water, milk and beverages etc.All parts BPA/BPS free and top rack dishwasher-safe. Do not microwave. Do not freeze.If your glass bottle breaks within the first year of purchase, we will ship you a replacement for free and cover the shipping cost.