Joggles / Elizabeth St Hilaire Mask - Square Study [57561]. The opposite of a stencil, these full sized 9" x 12" masks featuring designs by Elizabeth St Hilaire are the perfect size to fill a journal page, but the uses don't end there! Use our masks in your journals, to make cards, in scrapbook layouts, to make quilts, in mixed media projects, for home decorating projects or anywhere else you want to apply the design. Durable 10 mil thick mylar masks measure 9" x 12". Please note that the black areas represent the mask while the white areas represent the cutaways which will be colored once you apply your medium of choice.