Features:1. These essential oil test strips are perfect for testing the smell of oils. You can use them to make your own blends or to get a more accurate scent of other oils.2. Easy to use: Just dip the end of the strip in the oil (or put 2-3 drops on it) and let it sit for a few seconds. Then you grab the strip from your nose and give it a gentle sniff.3. Widely used in the detection of aromatherapy oils, perfumes, essential oils, etc. Use the wide end of the strip to write its type so you don't mix them up.4. Ideal for beauty shops, shopping malls, home furnishing, counters, cosmetic shops, professionals, etc.5. The set includes 100pcs/200pcs/400pcs/600pcs test strips, which are enough to meet your different daily needs.Notice:1.Actual color may be slightly different from the image due to different monitor and light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: absorbent cottonSize: 13*1.2cm