Impregum Soft - Tray Material Intro Kit. Medium Body, Regular Set. Polyether Impression Material. Intro kit includes: 3 - 50 mL Tray Cartridges, 1 - 50 mL LB Cartridge, 5 Cartridge Mixing Tips (Purple), 5 Cartridge Mixing Tips (White), 5 Intraoral Tips (White), 5 Impregum Intra-oral Syringes and 1 - 17 mL Polyether Tray Adhesive. Intro Kit