yourATCstore 1" x 3" Microscope Beauties Collage Sheet. This collage sheet features an assortment of images that can be used with 1 in. x 3 in. microscope slides. There are also a few inchies included at the top of this sheet. These images can also be used for other art projects too. This matte finish collage sheet is professionally printed and comes in a crystal clear bag for protection. Each collage sheet measures 8 1/2" X 11" and is acid free.