The Investment Ring System is used to sprue the contoured restorations.

 Given the different diameters of the pressed ingots and Alox plungers, the IPS Empress investment ring system is only suitable for the materials of the IPS Empress System.

Investment ring system for injecting restorations. For use with IPS Empress® materials only.

The 100g rings are used for individual restorations, while the 200g rings are indicated for various single-component restorations given the different diameters of the press ingots and the aluminium oxide piston.