SAFE TO USE : The airtight glass jar set is made of food-grade high borosilicate glass, 100% non-toxic and lead-free. MOISTUREPROOF : The bamboo wood lids with all-round silicone sealing loop creates an airtight and moistureproof environment to keep your food fresh. STYLISH DESIGN GLASS JARS : Multi-purpose, beautiful, practical. the crystal glass allows you to see what is inside and easily monitor whether your food has run out. they are easy to clean, quick scrub, rinse and put them somewhere warm to dry and then they put the prepared commodity in the jar. the glass jars are microwave and dishwasher safe; the wood lid is hand wash only. The jars made of reasonably thick glass with silicon seal rubber rings in cut grooves in the bamboo lid, which creates an airtight seal to provide complete protection for things inside while being no harm to food and human. There is no leakage of odor and liquid either. All foodstuffs can be stored in the storage container in an attractive, space-saving and hygienic way. Whether cereals, noodles, rice, coffee beans, spices, snacks, cookies, ingredients, party favors, or even body lotion, moisturizers, and anything you want to store for easy access and keep organized