Review on 🌈 Universal Litmus Test Strips: Expanded Application by Jonathan Bennett

Very inexpensive item and nicely packaged. Two "matchbox” pH strip holders are individually wrapped in a thin plastic bag. These two packs are of good quality, snug fitting and with a zip closure. Supposedly there are 100 pH strips in the "book". Each strip is approximately 9mm wide and 54mm long and is attached to the bottom of the book with a perforated strip. The perforated connection is secure, but also allows the book to be torn off easily and cleanly. On the inside of the matchbox lid is a colored pH chart printed with 14 color steps from pH 1 to pH 14. I haven't done rigorous testing of pH measurement accuracy, but a simple acid neutral exposure suggests this should work well. I definitely appreciate the quality of the packaging, the obvious litmus quality and am impressed with the speed of delivery. I happily recommend lab rat products and look for them to purchase other lab products.