Sterile blood collection needles for vacuum-tube phlebotomy, stocked in four configurations. Both gauges, 21G and 23G, are available either with a vacuum tube holder attached or with no holder, so you can match whatever holder system your clinic or laboratory already runs.Packs with a holder are supplied in inners of 25; the no-holder packs come in inners of 50, which suits higher-volume collection rooms that reuse a standard holder. The needle and holder work together to draw the sample into the vacuum tube with minimal discomfort to the patient. Gauge is the usual clinical trade-off, with 21G the common general-purpose size and 23G the finer option.These products are restricted to healthcare businesses and organisations. Completing account registration before you order makes checkout considerably smoother.