Fisherbrand Microhematocrit capillary tubes are 75 mm, non-heparinized tubes designed for reliable blood sample management. Manufactured from low-taper soft glass, each blue tube supports standard microhematocrit procedures in lab and clinic settings. The convenient 200-pack helps keep high-throughput workflows stocked and consistent. A practical choice for laboratories that process routine blood samples across companion animal and livestock care, alongside other livestock health products.