Strata-G provides reliable, tight contacts. Drawn-wire nickel titanium plus PEEK produces consistent separating pressure. Easier, more predictable contours. Marginal ridge enhancements built into the matrix bands and rings. Rings, bands and wedges combine for a 270° Seal for ultimate flash control. Rings won't spring off the tooth. Wide preparation ring makes tough wide preps easy to manage. Includes Short Ring (SG400), Tall Ring (SG500), Wide Prep Ring (SG600), Matrix Bands Assorted x 50, Composi-Tight 3D Fusion Firm Bands x 50, Blue View VariStrip Anterior Bands x 10, Wedges x 80, Rally Composite Mini Polishers x 12, Garrison Premier Ring Placement Forceps, Composi-Tight Matrix Forceps, 5-in-1 Multi-Function Composite Instrument.