Ideal for use in bacteriology and other routine laboratory procedures. Each 102.6 mm x 16 mm stand-up conical tube is compliant with 95 kPa IATA packaging instruction 650, ideal for sediment collection, uniform in size and shape, translucent, and can hold up to 10 mL of liquid/reagent. They are made of 100% polypropylene and come with the CQ-Lock™ screw cap, which prevents leaks, even in pneumatic tubes. They are also electron-beam sterilized and ready to use.