NV Charts are full-color reproductions of government charts. The U.S. Coast Guard uses NV Charts. So do the Bahamas Air/Sea Rescue Association, state Marine patrols and commercial fishermen. Individual 22x17-inch Charts are spiral-bound into easyto-use regional collections. Fullsize ChartKits cover a complete region. Compact ChartKits are selected charts folded and spiral bound into smaller 12x17-inch books -- ideal for smaller boats cruising local waters. Maptech ChartKits also save you up to 90%! (The cost of government Charts needed to cover all of ChartKit Region 2 would be over $700.)