NEW VWR 97043-562 Heavy Duty Vortex Mixer Kit W/ Universal Vessel Holder Tested.
Please refer to this video for more detail:
https://youtu.be/wlVtHkrPRVM
Please view this video for more detail info of other mixers, rockers :
https://www.youtube.com/watch?v=yEqVhMo_EBo