Product Details：

ST Preshaded  zirconia block is the most high-end zirconia block, the most natural zirconia block.
Strength (1250mpa) and transparency (44%) and 16 color（A1/A2/A3/A3.5/A4/B1/B2/B2/B4/C1/C2/C3/C4/D2/D3/D4)

Efficient pre-dyeing, preferred by Longbridge
part in a zirconia block. This multi-layered zirconia block can be used for both posterior and anterior teeth. Zirconia block
Covers all indications. Some customers have given us feedback that they prefer our ST Preshaded zirconia blocks to UPCERA ST Preshaded color zirconia blocks
Unlike Ivoclar zircad, our zirconia blocks are compatible with different brands of CAD/CAM systems and manual systems, such as
Zircon system, sirona Inlab system, Kavo system, Amann Girrbach system, Porland system, etc.