Refill Plate: Easy, Handy, and One-touch replacement for the System Rack. After use, the paper cover can be recycled. Complete discharge of liquid - nothing remains: Super-thin formed tip point enables complete liquid discharge. Long Size: Because of total 50mm length of long tip, the pipettor's nozzle does not touch the solution and/or the micro tube with no concern of contamination even if the tip reach's the bottom of 1.5ml micro tube. RNase/DNase/Human-DNA free certified. --Pipette tip compatibility--- Watson NEXTY : 0.2-2ul/1-10ul(M)/10ul(F), Eppendorf Reference : 2-20ul(Gray), Eppendorf Research V : 0.1-2.5ul/0.5-10ul(M), Gilson Pipe man : P-2/P-10, Finn pipette Digital : 0.2-2.0ul/0.5-10ul(M), Biohit Proline : 0.1-2.5ul/0.5-10ul(M), Nichiryo Nichipet EX : 0.1-2ul/0.5-10ul(M).