As any bench scientist will share, pipetting is a very repetitive process but is a very important part of any experiment. Oxford Lab Products Universal Pipette Tips ;are designed to optimize the pipetting experience and result. Universal-style pipettes are the most common – these tips are made to fit those designs. To further enable convenience, our tips are available in plastic, eco-friendly, re-loadable, or bulk packaging! http://www.yikang-med.com/universal-pipette-tips/