4.5g/syring composite resin. We are Manufacturer. The products has been Certificated by CE. Outstanding transparency design with stable series colors; Low shrinkage, Outstanding sealing effect; Good wear-resisting performance; Good clinical polishing performance with good natural esthetics effect. Nanofil® Composite Shades: A1,A2,A3,A3.5,A4,B1,B2,B3,B4,C1,C2,C3,C4,D2,D3,D4·Average grain diameter ...