Axygen® Universal Tips are designed to fit a wide variety of single and multi-channel pipettors, compatible with most popular brands of pipettors. These polypropylene tips are nonpyrogenic and RNase-/DNase-free. They are available in Maxymum Recovery, beveled, Eppendorf-style, nonsterile, sterile, non-filtered, and other features for specialized applications. Flexible walls and a series of internal sealing rings ensure a secure fit with less force required to load and eject. -These polypropylene tips are nonpyrogenic and RNase-/DNase-free. -Nonpyrogenic -Fine-Point