This airtight glass food storage jar set is made of food-grade high borosilicate glass, lead-free, non-toxic. The cork lid with a safety and airtight seal is with a cork to form an airtight environment for better food storage. The food storage jar is big enough to store spaghetti, pasta, noodles, flour, cereal, tea, coffee, beans, rice etc. Store goodies for foodies and keep your kitchen organized.