120V Bristol Vellum 9x12 Bristol Pad SKU - 12VP091220 Size - Creative Process: Stage 2 Fine Art Rendering. A sturdy, 2-ply sheet with a smooth, vellum finish can be used front and back. Ideal for pen and ink drawings, this bristol is pH-neutral. Due to the slight texture of the sheet it can be use with a wide range of media from super soft charcoal to light washes of watercolor and acrylics. Bristol Vellum is compatible with a number of techniques such as airbrush, silkscreening, and dry brush. Using a fixative for works using dry media, such as pastel and charocal, is highly recommended. Made in the USA.