CEREC® Blocks - Lithium Disilicate 500 MPA - FDA Approved Exact Same as e.max / Save $80 Per Box!! 14 Minute Speed Crystalization Cycle P3 (Ivoclar Programat CS) Size #14 - 5 Blocks per Box $99.99 Strength: 530 MPA Compatible with CEREC MCXL, MCXL inLab - MCX5 - Prime Mill 1 BOX = 5 BLOCKS