Package List 2 x cow pregnancy test strip Features - Simple operation, fast reading results, fast detection, practical to use Pregnancy Test Strip for Cow. - Invalid: There is no color band on control line (C), indicating that the test is invalid. Please take another test board to test again Livestock Colloidal Test Paper. - Size: About 13.00X6.20X1.00cm/5.11X2.44X0 Cow Early Pregnant Detection Paper. - Material: Plastic Cow Pregnancy Detection Tools - Color: White Horse Pregnancy Test Strip - It is made of materials, safe and can be safely Farm Animal Supply. - Negative: only one color band appears on control line (C), indicating that the tested livestock is not pregnant Livestock Testing Paper. - Positive: there is a ribbon in test area (T) and control line (C), indicating that the livestock is pregnant Farm Accessory.Goods DescriptionCow Pregnancy Detection Tools This is a pregnancy test strip, which is made of material, livestock can rest assured to use.Farm Testing Tool You can throw it into the garbage can after you're using this test strip.Livestock Pregnancy Test Strip Features disposable, this pregnancy test strip is convenient to use and will not spend time to clean