<b>To use, open the independent packaging, put the filter in the wine glass, <br> Put the nameplate on the outside of the wine glass, and take it out in five minutes<br><br></b> Food Grade F-D-A Certification <br> Without Changing The Taste Of Wine, So That You Can Drink Wine More Assured<br><br> Easy to carry, individually packaged, can be used anywhere, including travel, dinner, appointments<br> Suitable for any wine, including white wine and red wine<br><br>