Features： 1、400 Sheets: Perfume test strips provide you with fast and accurate results in quantities sufficient to meet your daily needs or replacements and those of the stores involved. 2、Versatile: These white paper test strips are for testing fragrance oils, perfumes, essential oils, etc. They help you quickly classify liquids and can also be used to determine if someone has lost their sense of smell. 3、Easy To Use: Simply dip the narrow end of the test strip into the essential oil (or 2-3 drops) and wait a few seconds, then place it 3-5in from your nose and write down what essential oil it is on the wide end of the strip. 4、Size Fit: These perfume test sharp papers measure 0.3 x 5.1in, small and portable, light and compact for your convenience whenever and wherever you need them. 5、Design: These disposable perfume test strips are made of paper, thick, safe and reliable to use, you will feel very convenient when you use the test paper. Specification： Item Type: Perfume test strips Material: Paper Single Sheet Size: Approx. 0.8 x 13cm / 0.3 x 5.1in Package List： 400 x Test Fragrance Papers (100 Sheets Per Book)