Check the listing for details. pH 1-14 Wide Range Test Strips [Moisture-Proof Vial of 100 Strips]. Condition: New. Listed at 17.99 USD. 100 single use strips conveniently packed into a moisture-wicking flip-up vialVivid color chart printed on the bottle enables easy determination of pH with increments of 1Plastic Strips enable you to test a solution without risk of touching solution and eliminate the risk of finger stainingNo chemicals or reagents needed for accurate readings, just one easy to use stripProudly made in America with lot numbers and expiration dates printed on each bottleThese 100 strips are conveniently packaged in a flip up bottle. They are premium quality strips made in America and have a vivid color chart, enabling the easy determination of pH to one unit. The chart has color block matches at [1.0][2.0][3.0][4.0][5.0][6.0][7.0][8.0][9.0][10.0][11.0][12.0][13.0][14.0].