Test tube rack made of polished hardwood. The rack has six holes to hold test tubes upright and 6 drying pins to hold the test tubes inverted. The holes will accommodate test tubes up to 24mm in diameter.
Tests For: Glucose, Protein, Ph, Blood, Ketone, Bilirubin, Nitrite, Urobilinogen, Specific Gravity, Leukocytes. Low-Carb Dieters Use These Strips To Monitor Ketone Output In Urine Which Can Be An Indicator Of Diet Success.