The v4 clearmetal matrix system
V4 ClearMetal Matrix System™, featuring the ClearMetal Matrix™ with "micro-windows", the V4 Ring and the V4 Wedge. The V4 System creates natural contours with ease, and its transparency makes it a great match for bulk fill resins and deep cavities, giving dentists peace of mind that the composite is sufficiently cured before the matrix is removed