Multicore Flow - Blue Refill Package- Dual Curing, Radiopaque, Highly Filled Composite. Refill Package Contains: 1 - 50 Gram Cartridge, 20 Mixing Tips, 20 Intraoral Tips, and 1 Flow Chart. Flowable. Allows for fast and easy core buildup. Delivered in a double-barreled cartridge. Used for cementing endodontic posts. MultiCore Flow is a dual-curing composite core build-up material that provides an excellent foundation for restoring vital and non-vital teeth. It is available in four different shades: light, medium, blue, and white.The MultiCore Flow system is coordinated with the only universal bonding agent dispensed in a VivaPen, Vivadent's self-etching AdheSE. MultiCore Flow Composite Core Build-Up is available in two delivery systems, the automix syringe and the base-catalyst cartridge system.Each refill comes with a 50 g base and catalyst cartridge, and accessories.