This cardstock is made of 65 lb. paper, so it is thick, luxurious and reliable. The smooth finish makes for easy printing, writing and even gluing for all of your art projects. Not only is this paper good to use for your mailing needs, it is perfect to use for DIY projects, arts and crafts, business and promotional announcements, and more.Details:Smooth Black8.5" x 11" each50 sheets65lb.Matte finish