High quality filtered tips specially designed to reach the bottom of narrow microtubes. Filter pore size of 4 microns. Graduated. Human DNA-free and certified free from DNase, RNase and PCR inhibitors. Compatible with EASY, Gilson, Eppendorf, HTL and Nichiryo micropipettes. Packaged in sterile polypropylene racks and bags of 1000 non-sterile tips. Natural color. Certificate of sterilization included