Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Satisfied with PH strips

I purchased the PH strips to check the anti-freeze in my car (better to check it yourself than ask the repair shop to check it). I used the strips to get a Ph reading from the container of anti-freeze I'd used to refill the radiator, and checked that against tht PH of the anti-freeze in my car. Strips are color coded and were easy to use. I would recommend this product to anyone whishing to periodically check the anti-freeze in their truck or auto to see if the anti-freeze needs to be flushed and replaced.