(70gsm) HARD COPY BOND PAPER, COPY PAPER Hard copy Bond paper 70gsm A4 / SHORT / LONG size (substance 20) Multipurpose Bond Paper for daily use for school, office, and company. Quick absorb 500 sheets in 1 ream Bond Paper Size Letter / Short = 8.5 inches * 11 inches FOLIO / Long = 8.5 inches * 13 inches A4 size = 8.5 inches * 11.75 inches