Shade A2 Syringe Refill, Flowable 81% Filled Nano-Hybrid Composite, Light-Cure. Box of 2 – 2 gram syringes. Dental Imaging & X-Ray. Dental Lab. Dental Supplies. WINDSOR MILL, MD. The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies.