Clearprint 1000H Fade-Out vellum drafting paper a 16# medium weight, acid-free vellum. Printed with a non-reproducible blue grid on one side. 100% new cotton fiber vellum paper is excellent product for manual drafting. Transparentized without solvents to produce the proper translucency, as well as the legendary Clearprint archival quality, strength, eraseability, no ghosting, and redraw characteristics. Blue grid lines are accurate and exceptionally clear, sharp, and visible, but will not reproduce on blueprints. All grids are printed on the underside of the paper to prevent removal during erasures. Pre-printed grids provide exact reference points for detailed drawings. High tensile strength helps prevent tears. Smooth translucent surface suitable for pencil or ink. Clearprint vellum drawing paper is quality-made in the USA.