Average grain diameter of filling is 0.6um,filling ratio up to 79.2% w/w. 
Extremely low polymerization shrinkage(2.2%)
Anti-attrition ability is greatly strengthened.
Extremely high physical mechanical strength.
Not sticky to the instruments.
The extremely good esthetics effect, the natural colors are stable.
Suitable for clinical use with bonding agent of dentin and enamel.
Suitable fills in all rank nest holes.