This storage container is made of 5mm high borosilicate glass which is non-toxic, odorless and 100% BPA free, very resistant to thermal shock. The smooth cork stopper is made from Eco-friendly natural wood. The crystal clear high glass allows you to see what is inside and easily monitor whether your food has run out without removing the cork lid. Its sleek see-through design makes it more visually appealing in your kitchen. Perfect gift for your family and friends who are enthusiastic about kitchen/pantry organization.