40 Infant Head Circumference Tape Measure · Disposable · Perfect for measuring babies ' heads · Flexible tape measure features inches on one side and centimeters on the other Product Description: Paper tape measure 40 (100cm). Disposable tape measure
Portable residual chlorine analyzer colorimeter LH-C10 is mainly use for rapid test to get the chlorine ion concentration in the water, using international standard method. It is eco-friendly, the test is fast and the result is accurate.