These essential oil test strips are unmarked and perfect for testing oil or perfume scents. You can use them to make your own blends or to get a more accurate smell of your other oils. Just dip the narrow end of the strip into the oil (or put 2-3 drops on it) and let it sit for a few seconds. You then hold the strip 3-5 inches from the nose and take a short whiff. Use the wide end of the strip to write down which oil it is so you don't forget or get them mixed up.
They can also be printed with your company's name.