Togetherwe 80 Strips Full Ph 1-14 Test Indicator Litmus Paper Water Soil Testing Kit 1 x Set of 80pcs pH test paper 100% Brand new and high quality 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 Item size: 70*44*4mm Original box: no