https://www.flashtestbio.com/products/feline-immunodeficiency-igg-fiv-igg-test-kit.html This is a colloidal gold detection reagent card used to detectFeline Immunodeficiency IgG ( FIV IgG) . Colloidal gold technology has the characteristics of high sensitivity, convenience, intuition, no need for auxiliary equipment and home-based detection. Utilizing this technology, we can detect whether your beloved pet carries Feline Immunodeficiency IgG ( FIV test) through this small card.