Ivoclar IPS e.max CAD MO Shade 2, Size A14(L) 5/Pk. Medium Opacity Abutment Blocks. IPS e.max CAD is a system of lithium disilicate glass-ceramic blocks for CAD/CAM dental restorations. Highly esthetic with exceptional user-friendliness. Provides long lasting and durable restorations. Package of 5 blocks