Flexitime Dynamix Heavy Tray Economy Pack: 6 - 380 mL Cartridges, 6 Dynamix Mixing Tips and 3 Dynamix Fixation Rings. Vinyl polysiloxane impression material optimized for the Dynamix automatic mixing machine that emphasizes precise impressions and accurate prosthetics. Homogeneous and void-free mixing gives assurance of precision and fitting accuracy. 6 - 380 ml cartridges & 6 tips