The Large Diamond Medallion Wall Stencil measures 28.4 inches high x 20.4 inches wide, and is perfect for an overall diamond effect. It is an enlargement of SDS-3418 - the simple diamond medallion. This product is precision-cut by laser from 7 or 10 mil plastic and is reusable, ideal for most paint applications. It is 100% reusable. The 7 mil plastic is perfect for almost any paint application, however we recommend that you upgrade to the thicker 10 mil plastic if you are using texture products for a raised look, or if you want a stiffer plastic.