BD Microtainer® Blood Collection Tube was designed for ease-of-use and helps to ensure that a quality capillary blood sample is collected. The wider-diameter BD Microtainer® Tube with BD Microgard™ Closure features an integrated collector and improved mixing ability. This full array of microcollection tubes is available for hematology and chemistry applications, and is color-coded to match the array of evacuated BD Vacutainer® Blood Collection Tubes.