Alvin Prestige Clear Vinyl Art Envelope 18x24

Ideal for artists, designers, architects, engineers, or anyone who needs to store and protect important artwork or documents. Made from heavy-duty .010" crystal-clear vinyl, heat sealed on three sides. Designed to fit standard art size sheets and portfolios, the fourth side opens with flap to hold artwork in place and protect against dust, dirt, and moisture. Includes acid-free black paper insert. First dimension is opening edge.