Staples Copy Paper, 2500 Sheets 5-Ream Case, White Letter size: 8 1/2" X 11", 2500 sheets, 5 reams/case; 500 sheets/ream 20 Lb., 92 US / 104 euro bright Ideal for toner-based copiers, plain-paper fax machines, and printers Reliable copy paper perfect for everyday use, recommended for black and white copiers Acid free, archive safe - won't yellow or crumble over time