Finntip stepper tips have been designed specifically for use with the Finnpipette stepper pipetter. The Finntip stepper is a plungerstyle tip for positive displacement pipetting. Seven sizes are available in sterile or nonsterile (non-autoclavable) versions. Dispensing Volume: 250, 500, 750, 1000, 1250µL. Certifications: ISO 9001 and ISO 14001. 50/Box. Thermo Scientific #: 9404210.