Kit: two 50 ml cartridges, 6 mixing tips Medium/ fast Extrude® Vinyl Polysiloxane Impression Material has the thixotropic properties to ensure material stays in the tray yet flows well to mix easily, making preparations and removal easier. Excellent tear strength Easy-to-read colors; syringe color contrasts with tray materials Kit: two 50 ml cartridges, 6 mixing tips