MARK3 VPS Impression Material - Monophase - Regular Set, 4 x 50 ml Cartridges. Pleasant mint flavor - no odor or irritation. Super hydrophilic, high tear strength formula exceeds ISO 4380 standards. Working time: 2 min 30 sec, Set time: 1 min. **Made in USA. Compare to Genie, Flexitime & Express 4 - 50 ml cartridges