Hygloss Products Transparent Acetate Sheets will come in handy for loads of uses in the classroom, office and at home. Using these acetate sheets in an overhead projector is a great way for teachers to make any lesson clear and fun. You can also use them to make stencils, homemade cards or crafts with windows, wizard hats and more. You can even use with dry erase markers, creating your own inexpensive dry erase board! Our Transparent Acetate Sheets are superior quality. New and Improved! Now, 7 mil and high clarity. This package contains ten .004 inch thick 8.5x11 inch acetate sheets. Acid free. Lignin free. Made in USA.