Uniform, smooth surface enhances ink holdout and printability. Ideal for brochures, covers, tabs, file folders and business forms. Laser and inkjet guaranteed. Acid-free for great quality that doesn"t deteriorate. Paper Colors: Blue Sheet Size: 8 1/2 x 11 Paper Weight: 90 lb.WAU49121. 49121. Wausau Paper Wausau Paper Exact Index Card Stock.