Spice jars are made of food-grade high borosilicate glass, lead-free and non-toxic. The airtight bamboo lid seals well with an all-around silicone, creating a moisture-proof environment to keep your spices clean and fresh. A complete 12-jar glass spice storage set with airtight bamboo lids, shaker inserts, labels, and accessories for stylish, fresh, and organized kitchen storage. Complete Set: - 12 square glass spice jars with bamboo lids, 12 shaker inserts, 1 silicone funnel, 1 cleaning brush, 96 pre-printed waterproof labels, and 81 blank labels. Accessories are packed flat to prevent damage during shipping. Note: Spices are not included.