Benchmark"™s new Roto-Mini series of rotating mixers provides a wide range of mixing capabilities, suitable for an array of laboratory applications including resuspension, protein binding, nucleic acid purification, histochemistry, hybridization etc. The mixers include interchangeable tube holders for accomomodating all common tube sizes from 0.5ml to 50ml. and the motion can be adjusted from vertical (end over end) mixing, to horizontal (rolling or hybridization style) mixing. Roto-Mini rotators are available in the "Plus" configuration. The Plus models provide the following additional features: Variable speed: 5 to 70rpm "Mix" function: Rotating in combination w/ oscillations (increased mixing) "Pause" function: Rotating with intermittent "stops" during rotation "Rock" function: Back and forth, gentle rocking motion (see-saw) The Plus models also offer an additional rocking platform (4.5 x 3 in.), as well as a 96 x 0.2ml tube/strip/plate holder for mixing PCR vessels in the "Mix" (oscillating) mode