Blank Mylar-Stencil Material-Blank Mylar-41 inch roll Stock Priced per foot-14 mil Heavy-Duty Blank Mylar - 41 inch roll stock priced per foot 14 mil heavy-duty Order by the foot, enter the amount of feet you desire Example: Qty.1 foot equals a 24" x 12" sheet, qty.2 feet equals a 24" x 24" sheet, etc.