Model number:61007407 Colour:as picture shown Number of Memory Sticks:1 Item Weight:30 g Item Weight:30 Grams Description: PH 1-14 universal indicator papers for alkaline / acid testsWith a pH color chart on each packTest Range: PH 1-14Test paper amount: 80 strips per packMaterial: PaperSpecification:Make sure the solution to be tested is safe before usingDip the strip into the solution to be tested for half a second, take out and contrast with the color chart, you will get PH values1 - 3 indicates a very acidic substance4 - 6 indicates an acidic substance7 indicates neutral8 - 11 indicates alkalinity12 - 14 indicate s a very high level of alkalinitySize Chart:Size: approx. 7 x 0.4 x 4.5cm/2.76 x 0.16 x 1.77inchPackage Includes:1 Pack PH Indicator Paper (80 Strips)Note:Please be reminded that these test papers are for general testing, not the accurate testing. PH 1-14 universal indicator papers for alkaline / acid tests With a pH color chart on each pack Test Range: PH 1-14 Test paper amount: 80 strips per pack Material: Paper