YUPO Medium Pads are produced with the popular 74lb (200g) YUPO White - a slick, smooth, non-absorbent synthetic (polypropylene) substrate that dramatically changes the way you paint, print or draw. Its bright white surface gives artists the flexibility to work in several different mediums to achieve unique and creative results. For watercolor applications the surface may be wiped clean to restore the original white of the sheet. Applications include watercolor, alcohol inks, pen & ink, silkscreen, debossing, drawing, acrylic painting, and more. Made in the USA.