Value: Because of it's affordability.Siltech� Solid Surface Windowsills bring affordable beauty and uniqueness to practically any window or fixed glass opening anywhere while allowing you to stretch your design *s to other areas.Renewable: No matter what the scratch, nick or stain Siltech� Solid Surface Windowsills can be restored to it's original state of beauty by a Siltech� certified professional.Versatility:Siltech� Solid Surface Windowsills combine beautifully with wood, aluminum,stainless steel, glass and more. Other applications include knee wall caps, shower curb caps and transition thresholds for flooring.Nonporous / Easy to clean: The nonporous surface will not promote the growth of mold, mildew or bacteria making Siltech� Solid Surface Windowsills easy to clean.Warranty: To ensure lasting beauty for years to come Siltech� Solid Surface Windowsills are backed by the industries only 15-year fully transferable warranty.