Made of premium paper which is durable and environmentally friendly. Premium paper has great absorption capacity of essential oil and water. It is easy and convenient to test, just the perfume on the test strips. 50pcs premium quality test strips, sufficient quantity for your needs. Features -Color: Beige. -Material: Paper. -Size: About 8.50X4.50X0.20cm/ 3.34X1.77X0.08in. - The essential oil test strips are unmarked and perfect for testing oil or perfume scents. You can use them to make your own blends or to get a more accurate scent. - The test strips are made of paper. and safe to use. - Great absorption capacity of oil and water. Easy and convenient to test. - Designed to test aromatherapy oil, perfumes, essential oil and so on. - The product is a great gift for your family or friends. Package list: 1 x Set 50Pcs Test Strips