● Tubes: made of strong, highly transparent medical-grade polypropylene

● Flat-top caps: made of medical-grade polyethylene

● Plug-seal screw-on caps: made of medical-grade polypropylene

● 50ml conical tubes available; large white writing area for easy marking

● Double threaded design reduces cross-threading; caps are easily opened and closed

● Flat-top caps can be written on

● Gamma radiation sterilised, non-pyrogenic

● No heavy metals

● Available in racked package (sterile) or bulk package (sterile & non-sterile)

● RNase & DNase free