Roto-Mini series of rotating mixers provide a wide range of mixing capabilities. Suitable for an array of laboratory applications including resuspension, protein binding, nucleic acid purification, etc. the mixers include interchangeable tube holders for accommodating all common tube sizes from 0.5ml to 50ml. The motion can be adjusted from vertical (end over end) mixing, to horizontal (rolling or hybridization style) mixing. The Roto-Mini rotator is also available in a Plus configuration, providing the following additional features: Variable speed: 5 to 70rpm function:Rotating in combination w/ oscillations (increased mixing) Pause function: Rotating with intermittent during rotation 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. Call 1-866-692-1249 for additional models and accessories