Anko 90Ml Set Of 12 Glass Spice Jars For Kitchen | Airtight Jars With Premium Rubberwood Lid & Wooden Tray | Spice Rack Set For Kitchen, Black AIRTIGHT SEAL: The lid is made of rubberwood (coated with mineral oil) and comes with a food-grade silicon sealant ring which makes it airtight and thereby ensures better food preservation. ENVIRONMENT-FRIENDLY MATERIAL: The borosilicate glass is superior to plastic and never warps or cracks. It is odour-free, does not leach, does not get discoloured and is resistant to corrosion. MULTI-PURPOSE STORAGE: The small size of the glass jars makes them portable and are a suitable storage option for small ingredients, be it spices, cosmetics, toiletries and other knick-knacks. IDEAL FOR GIFTING/ DECOR: These petite canisters along with the wooden tray are great gifts for friends and family on special occasions. They also come in handy in DIY art & craft projects.