ITEM NAME:High Accuracy PH Test Paper Saliva Strips Water Alkaline Acid Indicator Testing 100% brand new and high quality Features: Easy to use and carry. Measuring your PH in anytime and anywhere. The ideal PH range of saliva is about 6.4-7.2(Below 6.4 is too acidic, above 7.2 is too alkaline). It is the deal for testing the PH of various substances such as foodstuff, liquid, urine, soil. There is a strong correlation between the pH of the body's internal environment and PH paper help you to maintain good healthy body by testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat...etc. High Accuracy PH Test Paper only, other accessories demo in the picture is not included! Specification: Material: Paper Dimensions: 3x10cm/1.18x3.94inch Quantity: 1 Tube Note: 1.Please allow 0-1cm error due to manual measurement..It is the deal for testing the PH of various substances such as foodstuff, liquid, urine, soil. The ideal PH range of saliva is about 6.4-7.2(Below 6.4 is too acidic, above 7.2 is too alkaline). High Accuracy PH Test Paper only, other accessories demo in the picture is not included!