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

● Flat-top caps: made of medical grade polyethylene

● Large white writing area for easy marking & flat-top caps can be written on

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

● Gamma radiation sterilized, non-pyrogenic

● RNase & DNase free

Specifications

● 15ml can withstand centrifugation of 8,400RCF

● Sealing test: complies with The International Air Transport Association (IATA)

Safety Standards