Solidworks 2D Drawings: A SOLIDWORKS 2D block is a 2D drawing item or sketch entity for use in SOLIDWORKS® 3D CAD software. Blocks for drawing items and sketch entities that you use frequently, such as typical notes, title blocks, label positions, and more, can be created, saved, edited, and inserted. You can attach blocks to geometry or to drawing views, and you can insert them into sheet formats.