Photopolymer Sheet (4.125" X 5.75") This UV-sensitive plastic can be exposed much like a photograph to create textured plate for creating your own designs. In a nutshell, mask the plastic sheet with your design on a transparency, expose to strong UV light - sunlight or artificial - and then rinse and brush in water. Bingo! Explicit instructions here. Smells funny - if you have a sensitivity to that.

116mm x 150mm By the each.