Heavy weight 140 lb. / 300 GSM white paper with embossed texture. Optimally sized surface for all acrylic paints, markers and inks. 15-sheet pad versions available in traditional fold-over construction as well as dual loop wire bound construction with "In & Out" pages (patent pending) that allow you to remove sheets from the pad for drawing, reworking, scanning, and more. Upon completion, simply return the sheets into the pad. Made in the USA.