Polypropylene (PP) test tubes, not graduated, with polyethylene (LDPE) screw cap which guarantees a perfect leakproof, conical bottom and selfstanding base. The screw cap is “capture” type. It allows to accommodate a possible collection swab inside the tube. Non-cytotoxic, biologically inert. - Ø 13 x 80 mm. Autoclavable at +121°C.