Quantity: one set (100 pieces)Test 14 in 1: Test strips available for Total Alkalinity, pH, Lead, Copper, Nitrate, Sulfite, Fluoride, Iron, Chromium Mercury/Cr(VI), Hardness, Bromine, Free Chlorine, cyanuric acid.100 test strips: 100 test strips, easy to carry and use. This strip is a great way to easily determine water quality with 14 key indicators. Quick Response: Dip the test strip in water for 5 seconds, take it out and wait 30 seconds. Compare with the corresponding item in the color card on the bottle to get the result. Multifunctional test: suitable for swimming pools, drinking water, tap water, well water, hot springs , etc., to ensure water quality and prevent health problems and property damage.Easy to carry: the package size is 14.5 x 5.4 x 5.4 cm , which is very convenient to carry, sealed in aluminum foil to prevent deterioration.