1000HP Series Vellum Design and Grid Sketch Size: 0.5" H x 17" W x 11" D 50 sheet per pack Good for pencil or ink In unprinted and printed fade-out blue grids This 100% new cotton fiber media is transparentized without solvents to produce the proper translucency as well as the legendary Clearprint archival quality strength erasability (with no ghosting) and redraw characteristics. 16 lbs. (68gms/meter2)