These erasers are great for getting rid of pencil marks, not only on paper of velum, but wood too! Grab two, and throw one in your toolbox.
White vinyl for erasing pencil from paper vellum and drafting film 21/2 x 7/8 x 1/2 block in cardboard sleeve
Alvin Vinyl Eraser
Factis Extra Soft White Vinyl Eraser Latex Free - 8414034652029
Pentel Hi-Polymer Latex-Free Block Eraser – K. A. Artist Shop
Factis Extra-Soft White Vinyl Eraser — Wallack's Art Supplies
Faber Castell White Vinyl Eraser - The Wave - Sam Flax Atlanta
School Smart White Vinyl Erasers are non-abrasive and latex-free. Soft eraser helps to erase completely without smearing or damaging paper and brushes away cleanly. Made of soft vinyl.
School Smart Latex-Free Soft Vinyl Eraser - 20 count
BAZIC Erasers, Jumbo Vinyl Pencil Eraser (4/Pack
Factis® White Vinyl Eraser (General Pencil) – Alabama Art Supply
Dust-Free Vinyl Art Eraser, White - 2 Pack - #187120 – Faber-Castell USA