My Colors Cardstock is manufactured with a high degree of care and consistency. Sheets are core-dyed and monitored to ensure a uniform color match from each dye lot. It's made from high quality virgin pulp, which results in paper with long fibers that's easier to score and fold without cracking or ripping effects. It's also great for nice, clean, even cuts when used with a die cutting machine. This package includes 18 sheets of 100lb cover weight or 270 GSM paper. Acid & lignin free.