CTK BioTech's ' Designed to specifically detect low levels of fecal occult blood, hHB 25 ng/mL, Higher accuracy, sensitivity and specificity than the Guaiac Test, No dietary restrictions, Clear, easy-to-interpret result, Individually sealed foil pouches containing: One cassette test device,, One desiccant, Stool collection devices, each containing 2 mL of extraction buffer (REF SB-R2011), Patient ID stickers, One package insert (instruction for use).