This Universal Microtube Holder is a removable attachment for use with the TurboMix Attachment (Part No. SI-0564) on the Vortex-Genie 2 family of products, the Vortex-Genie Pulse, and the Disruptor Genie. Accepts 1.5 mL or 2.0 mL microtubes (snap-top or screw-cap).