SKILCRAFT 20 lb. bleached wood-pulp 88+ brightness paper for use with a stencil duplication process and can be printed on both sides. Contains 50% recycled and 30% post-consumer waste. Thicker than Xerographic and Bond papers, Mimeograph paper is best used for two sided printing. Acid-free for archival quality. 10 reams of 500 sheets per box. Meets Executive Orders 13514 and 13423.