pH Test Strips 4.5 - 9.0 (DOUBLE PACK) for Urine & Saliva

Price:£17.98£12.99Save: 28% off
5 out of 5 stars Friday 06 January, 2017 By SL
So far it seems to work well. I purchased these for my mother as she is sick so wants to understand the PH levels in her body.