Description The set includes 100 PCS Capillary Tubes. They're treated to prevent blood clotting. They are suitable for and hospital use. Features - Color: As shown. - Material: glass - Specification: 7.5x0.1x0.1cm - Made of borosilicate glass, with a to maintain cleanliness - Heparinized capillary tubes are treated to prevent blood clotting - Great for and hospital.