A high quality outer envelope in white, thick paper with PE lining. It has lower barrier properties, useful for teas & herbs. Keeps the freshness sealed. Easy to use. Many customers decorate the outer envelope with a color sticker. Idea for Baby showers, parties, cafes, tea rooms where you can pack your own blends in individual envelopes. How to use, just insert a filled tea bag or spice into the envelope and heat seal the opening with a hot iron or heat sealer.