laboratory disposables - blood collection needles, 21G, type flashback or visio with window to confirm the correct vein puncture, 0.80mm x 38mm, special design, with window to confirm the correct vein puncture, single-use, safe and efficient, green, boxes x100, total cost 6,47 EUR/box after geting the 35%bonus, code 01-113, todylaboratories®, CE mark