Oxford Lab Products pipette tips are manufactured with the highest quality standards. Molds are the most crucial part of manufacturing high quality tips which is why Oxford Lab Product tips are produced from a Swiss Made Diamond finished mold for a very smooth internal surface. Oxford tips are manufactured in a fully automatic, human touch-free facility and they are made from virgin polypropylene plastic. Oxford Lab Products offers tips suitable for 96-well plates (single, 8- and 12- channel pipettes) and 384-well plates (16- and 24- channel pipettes). Oxford tips are guaranteed to be free from DNase, RNase, Human DNA, Pyrogen and PCR inhibitors. These tips are designed to be utilized with most pipettes currently on the market. Oxford Lab Product tips are available in bulk, racked, and in eco-friendly reload systems along with the options for racked, sterile, and filter. The racks are autoclavable at 121°C for 20 minutes.