How to do it: You can use them to make your own mixture or get a more accurate scent of your aromatherapy oil. Simply dip one end of the churro into the oil (or add 2-3 drops) and let it sit for a few seconds. Hold the note to your nose and take a gentle breath. Product features: Strong absorption of water and oil. Testing is simple and convenient. These strips are designed to be portable, pocket-sized notebooks, so you can carry them with you. Hardcover protection test strips are not easy to bend. Just tear off a piece when needed. Application: Designed for testing aromatherapy oils, perfumes, essential oils, etc. Suitable for shopping, home, counter, professional, etc Product name: Perfume test strip Material: Plastic Color: Black Size: 143mm/5.63in Weight: Approx. 80g Package includes: two packs of 100 test strips each for a total of 200 perfume test strips.Use specially designed blotting strips to absorb odors. It can be used to test odors when making products such as candles or perfumes, or it can be used in retail Settings to allow customers to easily test a variety of odors. These scented test strips are versatile; They are suitable for perfume testing, essential oil testing, aromatherapy oils, perfumes, etc. Helps you sort liquids quickly and can also be used to determine if a person has lost the ability to smell. Perfume test strip portable pocket notebook style, small and portable, light and compact, you can carry. Hardcover protection test strips are not easy to bend and can meet your needs wherever and whenever you need them. The scent strips are made of high quality strong cover paper that is thick, absorbent, oil absorbent and easy to use, and unlike other paper on the market, are specifically designed for perfume testing. sturdy and environmentally friendly. Perfume test strips have great absorption capacity for essential oils and water. The test is simple and convenient, just spray the perfume on the test paper. The smell test strip is suitable for perfume test, essential oil test, aromatherapy oil, perfume and so on.