The Vacuum Blood Collection Tubes (Surgitech) EDTA K3 5ml (100's) are designed for the collection and preservation of blood samples. These tubes contain K3 EDTA as an anticoagulant, preventing blood clotting during collection. Each tube has a 5ml capacity and comes in a box of 100, making them ideal for laboratory and medical use. The vacuum mechanism ensures consistent blood draw, reducing the risk of hemolysis and ensuring accurate results in hematology tests.