You will enjoy this easy and accurate way of testing for pH. The Universal pH Indicator Test Papers are used exclusively for measuring urine pH. The easy-to-read 2.0 increments range from 2 - 12 pH. The glass vial is pocket - sized and contains 100 pH test papers and a protected color comparison chart.- For daily insulin users - Economical pH testing - Fast and accurate - Easy-to-read 2.0 increments - Carry-along convenience Contents: 100 Universal pH Indicator Papers