25% Cotton Laser PaperHigh volume legal or professional service offices can rely on the consistency and longevity of this 25% cotton sheet. Its super-smooth surface brings cotton elegance to any document output on high-speed copier or laser printer. Moisture controlled to prevent curling. Acid and lignin free. Size: 8 1/2 x 11; Paper Color(s): White; Paper Weight: 20 lb.