Micro Essential Lab 7600 Brilliant Dip Stik Insta-Check Plastic pH Test Strips, 6 - 13 pH Dip-style pH test stick for detecting a range of acid or alkaline pH in a variety of solutions including urine, saliva, hair products, and aquarium water Plastic stick [approximately 3.0 x 0.25 inches (L x W)] with pH paper tip provides immediate, reproducible pH readings Distinct and bright color separations represent clear, accurate readings at each 1.00 pH increment Housed in a clear, plastic container for storage and protection Dip-style pH test stick for detecting a range of acid or alkaline pH in a variety of solutions including urine, saliva, hair products, and aquarium water Distinct and bright color separations represent clear, accurate readings at each 1.00 pH increment Housed in a clear, plastic container for storage and protection