Smelling strips Universal Aromatherapy Fragrance Tester Strips for Essential oil-tipped test paper Scent Product Details Color: blank page It's a thick and sturdy absorbent paper,with its good ductility,absorbability, durability and stiffness. More:These test strips have wide range of use; they are suitable for perfume testing, essential oil testing, aromatherapy oil, fragrance etc. Characteristics:Paper has great absorption capacity of essential oil and water. NOTE: NOTE: 1.Great absorption capacity of water and oil.Easy and convenient to test.Keep scents for 60days. 2.These strips are thick enough to absorb the perfume and do not warp. Please be sure to check the Aromatherapy Fragrance test paper size carefully (due to different measurement methods, 1-2mm error is normal) We can make the test strips based on your own shapes/sizes.Feel free to contact us.