Wide tip opening helps prevent damage to fragile cells and genomic DNA during pipetting. May also be helpful when pipetting viscous solutions. RNase, DNase, and DNA free. Autoclavable polypropylene. For use with ErgoOne®, Eppendorf®, Biohit®, Pipetman®, USA Scientific®, Finnpipette®, Nichiryo, Oxford Benchmate®, and similar pipettors.