Eppendorf North America, Hauppauge, NY, has released 15 ml and 50 ml conical tubes to broaden the volume range of its Eppendorf tubes. With the introduction of the two screw cap tubes, Eppendorf tubes now cover a volume range from 0.5 ml to 50 ml. Newly designed screw caps provide optimal sealing properties, and their grooved and multisurface side-contour design also ensures a secure, slip-free grip. The optimized handling features further facilitate safe opening and closing of the tubes through convenient one-handed operation. The conical tubes are sterile and pyrogen-free, and they are also free from deoxyribonuclease and ribonuclease, as well as human and bacterial DNA. The highest level of manufacturing precision and robustness ensure smooth performance of these tubes in laboratory instruments, such as centrifuges or thermomixers. For more information, visit Eppendorf North America.