Dentsply Spectrum Kit. Universal Microhybrid Composite Restorative. 4 Syringes of Spectrum of 3 Gm each (1XA1,1XA2, 1XA3 & 1XB2). 1 Spectrum Bond 3.5 ml. Contents of Kit «The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies.