Clearprint® 1000H Series 24 x 50yd Vellum Roll 8x8 Grid This is the best choice you could make if you are interested in manual drafting. It works well whether you are using ink or pencil for your drawing. It weighs 16 pounds and is 68 grams per square meter. You can purchase this product in packages of 10 or 100 sheets, depending on how much you need, as well as your choice of 5, 10, 20, or 50 yard rolls. You can get the printed grids in isometric, as well as 4x4, 8x8, and 10x10. This product is made of 100 percent new cotton fiber and has been transparentized without the use of solvents. The result is a product with a good amount of translucency. You can also expect the signature Clearprint archival quality, as well as erasability without ghosting, strength, and good redraw characteristics. Alvin Vellum, 16Lb, 24"X50Yd, 8X8Grd.