Cardstock

To put it simply, cardstock is a thicker and more durable type of paper. It is more flexible and thinner than paperboard and cardboard, making it perfect for arts and crafts. Since it is heavier and sturdier than standard or regular paper, it is also the best choice for paper crafting and card making.

Card stock is often used for business cards, postcards, playing cards, catalogue covers, scrapbooking, and other applications requiring more durability than regular paper gives. The surface usually is smooth; it may be textured, metallic, or glossy. When card stock is labeled cover stock, it often has a glossy coating on one or both sides (C1S or C2S, for "coated: one side" or "coated: two sides"); this is used especially in business cards and book covers.