This pack of K2EDTA Vacutainers contains 100 sterile blood collection tubes designed for venous blood sampling in clinical diagnostics. Each tube is pre-filled with a precisely measured amount of dipotassium EDTA (K2EDTA), a potent anticoagulant that prevents clotting by sequestering calcium ions while maintaining the integrity of cellular components. Recognizable by the industry-standard lavender color-coded safety cap, these tubes feature a pre-set vacuum to ensure an accurate draw volume, typically ranging from $2\text{ mL}$ to $4\text{ mL}$. They are essential for routine hematological tests, including complete blood counts (CBC), blood grouping, and cross-matching, as they prevent platelet aggregation and preserve cell morphology for microscopic examination.