Features 40 Megs of resources 6 complete sets of 3D/2D plans for observatory sizes 6' X 6', 6' X 8', 8' X 10', 10' X 10', 10' X 12', to 10' X 14' Each plan is adaptable for Roll Left and Roll Right variations eDrawing viewer for viewing the plans included on the CD Rotate, Pan, Zoom, Print individual plan views from the eDrawing viewer Materials lists for each plan with Home Depot cata