The Najem Alshahab website offers a variety of educational test strips and dip slides, including pH papers, vitamin C test strips, and glucose test strips, designed for various educational and experimental uses. They offer customizable labels and bulk quantities for most products. The selection includes items like litmus test paper, cobalt chloride test strips for moisture detection, ... https://najemalshahab.com/product-category/test-strips-dipslides/educational-test-strips/