American Crafts - 12x12 Brights Textured Solid Core Cardstock, 60 Loose Sheets, Heavy Weight 80 lb. (three each of twenty different colors, including ten brand-new colors).
Unique open corner package and loose sheets within the box means no messy glue binding. Simply tear off the perforated tab on top and the box becomes a convenient storage container. Highest quality, archival safe.