Characteristic 1.ST: Super Translucent Block 2.Light Transmittance:43% 3.Flexual Strength:1200Mpa 4.Best Popular 5.Use for coping,crown,bridge,implant,framework 6.Compatible System:Open System,Zirkon Zahn System,Amann Girrbach System,Kavo,Roland,Lava,Sirona etc.