50ml Sterile Lab Tubes, Centrifuge Tubes with Leakage-proof Screw Cap, Conical Non-pyrogenic, DNase/RNase Free, Enzyme-Free, Graduated Marks, 25pcs

【AUTOCLAVABLE AND FREEZABLE】This plastic test tubes are autoclavable at 249.8℉/121℃ and freezable to -176℉/-80℃. 【PREMIUM QUALITY LAB TUBES】Made of high purity pp material, acid and corrosion resistance. The screw caps is leakage-proof for storing experiment samples. 【STERILIZED CENTRIFUGE TUBES】These Conical centrifuge tubes- Centrifuge tube is sterilized, non- pyrogenic, DNase/RNase free for science experiments. 【EASY FOR READING AND IDENTIFICATION】The clear, black graduation marks with ±2% accurate rate and 1ml increments is designed for easy reading and the large white blank area is convenient for labeling and distinguish from. 【WIDE APPLICATIONS】These centrifuge tubes are widely used in biochemistry and molecular biology，pharmacy and chemistry laboratory, clinical diagnosis experiments, food science and etc.