The airtight glass jar is made of food grade glass, non-toxic, odorless, lead free and bpa free, heat and cold-resistant. 304 stainless steel secure buckle is rustproof and corrosion resistant, will be a great choice for kitchen storage. ( Dishwasher Safe ) The lids of the glass food container are airtight design, with food grade silicone seal gasket, will ensure an airtight seal leak-proof and prevents the entry of insect, keep your food dry fresh and preserve the flavor of food for a long time. The stainless steel secure buckle is easy to open and close, will preduce the mess when using the airtight storage jar. It's also convenient for you to wash the inside. Clear mason jar makes you easy to check and grab what you want.The airtight glass jar are good to preserve various food like coffee, sugar, chocolate chips, candy, cereal, spice, cookies, dried fruits, pasta, cereal, oats, corn flake, rice, tea, flour, snacks, nuts, beans, grains, and dog treats, etc. also great for canning your own pickles and other canning foods!