Clearprint Gridded Fade-Out Design and Sketch Vellum Rolls - Clearprints 1000H design and sketch vellum is the industry's standard for durability and performance and is noted for its supreme archival qualities. Its 16 lb (60 gsm) weight is equivalent to a standard bond paper and is said to be the finest product you can buy for manual drafting. This 100% new cotton fiber media is transparentized without solvents to produce the proper translucency as well as legendary Clearprint archival quality and strength. Its surface is transparent, smooth, and uniform. Pen and pencil lines come out sharp and clean with no feathery edges and no ghosting. Erase, redraw, and then erase again. This remarkable paper retains its strength, stability, transparency, and printing qualities under exposure to heat, light, and atmosphere. It will not become yellow, brittle, or opaque with age. This Design and Sketch Vellum Pad contains 50 sheets of vellum featuring a Fade Out Grid. This grid is printed on the reverse side with with a specially formulated ink that will not reproduce on diazo prints.