Made of autoclavable polypropylene. Caps are made of polyethylene and are not autoclavable. Tubes have a gross volume of 1.2ml but with a cap in place, they will hold 1.1ml. Ideal for HTLV-III testing, bacterial and hybridoma cell uptake studies, cell harvesting, pharmaceutical quality control, receptor binding assays, RIA and EIA.- Individual Plug Caps, Non-Sterile, 960/bg, 5 bg/cs 14-21 Days