Made from premium nylon material, It doesn/'t included any toxic chemicals or bleaching material, very safe and healthy to use.Easy and convenient to be put in or taken off from the tea cup with drawstring.It is heat-resistant and rub resistant, having properties of high performance, fine workmanship, practical and durable.Its opening is easy to sealed. You need to use nylon sealing machine(not included) to , the tea leaves, herbs or spices will be blocked in the bag thus won/'t scatter anywhere in your cup or soup pot.Great for holding tea leaves, all herbs, spices or in making home tea, stews, marinades, soups and casseroles etc.Condition: Brand NewColour: as shownMaterial: NylonSize: 6x7cmPackage Contents:100 * Tea Infuser BagsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.