Fisherbrand Heparinized Microhematocrit Capillary Tubes are 75 mm, red-coded tubes manufactured from low-taper soft glass for blood sample management. The heparinized design is suited for microhematocrit procedures in veterinary clinics and farm settings. Supplied in a convenient 1 x 200-tube pack, they fit everyday needs for canine, feline, equine, and livestock patients. A practical choice for practices working with horses, cattle, sheep, goats, poultry, and small animals.