Capacity: 15ml<br> Material: polypropylene(PP)<br> Outer diameter: 1.6cm/0.63inch<br> Total length: 12cm/4.72inch<br> Type of bottom: conical<br> Type of cap: blue screw cap<br><br> <b>Package included:</b><br> 20 x 15ml centrifuge tubes<br><br> They are clear, so you are able to see through the tubes without problems<br> They're made rather thick and sturdy which allows you to use them over and over<br> Can be sterilized with high pressure and high temperature (up to 121℃)<br>