Tim Holtz alcohol ink yupo is a versatile surface specially suited for watercolor and mixed media techniques using Tim Holtz alcohol inks mixatives and blending solution. Yupo white heaystock is a smooth synthetic ultra-heavyweight 144 lb surface that resists buckling and dries quickly. Non-porous water resistant surface. Not laser or inkjet compatible. This inch package contains ten 5x7 inch sheets of white heavystock. Adult use only conforms to ASTM D4236. Made in USA.