Made from safe paper which is safe. these test strips can help you . It has great absorption capacity of essential oil and water. It is easy to test, just spray the perfume on the test strips, save your time and efforts, and suitable for most places like beauty shop, home or jewelry shop. Features -Color:White. -Material:Paper. -Size:8.50X4.50X0.10cm/3.34X1.77X0.04in. -Perfect for beauty shop, mall, home, counter, cosmetics store, professional and practical for most places needed. -These testing papers are suitable for dipping and are convenient for holding and recording. -Used for testing perfumes, essential oils, aromatherapy oil and more, fit your demands. -Made from premium paper materials, these disposable perfume test strips are reliable to use. -Specifically designed to absorb fragrances and easily to test, and it is very portable to take. Package list: Test Strips