Fontee 240pcs of pH Range 1 14 Litmus Indicator Test Strips Great for Testing Many Usual Everyday substances, Including Lemon Juice, Milk, moisturized Soil etc

pH paper help you to maintain good healthy body by testing many usual everyday substances, including lemon juice, milk, moisturized soil, saliva, urine, sweat, etc, also idea for school and educational supplies The scale reads from 1 to 14: 1 - 3 indicates a very acidic substance, 4 - 6 indicates an acidic substance, 7 indicates neutral, 8 - 11 indicates alkalinity, 12 - 14 indicate a very high level of alkalinity Package: PH 1-14 color chart in each pack, total 240pcs of 3 Pack The test strip color changes must be matched with the pH scale color chart within about 15 seconds Dimensions: Approximate size of pack 70 x 45mm