Pack of 100 replacement microhematocrit capillary tubes for use in the centrifugal microhematocrit method Microhematocrit is a procedure for determining the ratio of the volume of packed red cells to the volume of whole blood by centrifuging a minute quantity of blood in a capillary tube Shaped to allow quick retrieval of samples inside the tube with minimal loss - Open on both ends Durable and sturdy construction allows for easy use - Supplied in a resealable tube for added protection Individual tubes measure 1.3mm x 100mm with an inner diameter of 0.9mm