Vaccum Blood Collection Tube 3.2% Sodium Citrate-Cap- BLUE 1.8ml-13 * 75mm EDTA K3 Micro -Cap VIOLET 3ml- 13 * 75mm Gel & Clot Activator – Cap – YELLOW 4ml- 13 * 75mm Potassium Oxalate + Sodium Fluoride – Cap GRAY 3ml-13 * 75mm