TUBE, CAPILLARY K3EDTA VLT 200UL POLY MICROVETTE (100/PK) Preassembled end-to-end capillary tube Cap is easy to open Special cap design minimizes aerosol effect Optimized tube geometry ensures thorough sample mixing Color-coded caps and print for easy identification of additives and nominal values Shelf life and batch number on each tube Round bottom inner tube with flat base