Raven ColorWheel Cardstock 12 x 12" is a pack of 10 sheets of cardstock 100 lb or 270 gsm in thickness. The cardstock is smooth on both sides and has a solid color core. Every creation starts with a great foundation of high-quality cardstock, so be sure to add this pack to your supplies! The ColorWheel Cardstock collection brings color to life! With 48 gorgeous shades, this rich and heavy cardstock is a must-have for every craft room. Get all 48 shades in CSA-003 The Full 48 ColorWheel Cardstock Pack and create your own irresistible swatch deck with S4-1403 Color Swatch Petal Dies.Approximate Size:12.00 x 12.00 in./30.48 x 30.48 cm CS-147 is also available in two other sizes, 8.5 x 11" and A4 size.