This Fisher Scientific 05-090-100 Mini Centrifuge is in good condition, has been tested and is guaranteed to be fully functional. This centrifuge came from a local lab that had surplus lightly used equipment. We urge customers to view all photos as they show overall condition, included accessories and functionality. Please feel free to contact us with any questions. The Fisher 05-090-100 Mini Centrifuge is a great tool for personal centrifuging, that can be kept at hand for quick use. This mini centrifuge is simple to use with a palm-shaped lid, that allows for a quick extraction, and high-speed spin downs of 1.5/2 mL tubes. This micro-centrifuge has a fixed speed of 6600RPM, with an RCF of 2100 x g, but operates quietly so as not to disturb your work area.