McKesson Capillary Blood Collection Tube Plain 40 ?L Without Closure Plastic Tube
These 40 ?L micro-hematocrit capillary tubes are plastic and untreated: They are for use in conventional 75-mm hematocrit centrifuges.
The plastic micro-hematocrit capillary tubes help to eliminate the risk of injury and contamination associated with glass tubes.
These nonsterile, translucent capillary blood collection tubes have blue tips and are 75 millimeters in length.

 Brand: McKesson Brand