Clearprint Vellum Sheets with Engineer Title Block and 8x8 Fade-Out Grid, 11" x 17", 16 lb., 1000H 100% Cotton, Translucent White, 10 Sheets/Pack is used to produce professional drawings. Made of 100% new cotton fiber in the USA. Legendary Clearprint 1000H paper boasts acid-free archival quality, strength, erasability without ghosting and redraw characteristics. Pre-printed title block clearly identifies and organizes multiple versions of plans and 4x4 per inch faint blue grid is non-reproducible when scanned or photocopied. Use with pencil, ink and traditional drafting products. Transparentized without solvents to produce a permanent transparent drawing surface, which is also printable in laser and inkjet printers.