PH and Thermometers

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…etcItem size: 70*44*4mm. Package Include: 1 x Set of 80pcs pH test paper