BOROSILICATE GLASS Borosil Klip n Store container are crafted from premium borosilicate glass known for its extreme temperature resistance and durability making it perfect for daily use and commuting LEAKPROOF AIRTIGHT BPAFREE LIDS Designed to keep your food secure our fluted container feature leakproof lids with a 100 airtight seal ensuring freshness and preventing any odors from escaping MICROWAVE FREEZER SAFE Easily reheat your meals directly in the container without needing to transfer to another container They are safe to use in both microwave and freezer DURABLE SCRATCH RESISTANT Harder and tougher than regular glass resistant to scratches and remains clear even after longterm use