Premium 15mL and 50mL conical tubes manufactured from high-clarity polypropylene. Tubes feature dark imprinted graduations and a large white writing area for sample identification. Flat polyethylene cap also provides another opportunity for labeling. Available in sterile bulk and racked versions (50mL self standing tubes are available in bulk only). Racks are made out of reusable cardboard, making them more environmentally friendly. The inner packaging is individually labeled for lot-to-lot traceability with ‘easy-tear’ opening. Fine production tolerances enable high RCF ratings. Sturdy cardboard outer boxes provide additional transport protection. All styles in cases of 500 tubes.