Alva-Line vellum tracing paper rolls are medium-weight 16 lb. basis vellum papers manufactured from 100% new cotton rag fibers with a non-fading blue-white tint. Finely-grained surface that is excellent for pencil and pen receptivity. Alva-Line tracing paper advantages include: leave no ghosts, smudges, or smears when erasing; high tensile strength prevents tears; resists aging and yellowing. Available in 5-yard, 10-yard, 20-yard, and 50-yard rolls; variety of popular widths from 12" to 42". Alvin #6855 100 rag tracing paper rolls are made in the USA.