Simple Stories Collection Kit 12"X12" I Am. Make your scrapbooking project about school look extra cool with these pieces! This package contains twelve 12x12 inch double-sided sheets of cardstock, including signature element pieces (sizes: 3x4, 4x4, 4x6 inches) with rose gold foil accents, and one 12x12 inch sheet of cardstock stickers. Acid and lignin free.