The EXT Series are customizable frames. The Premier, which is made from premium alloy, comes in 4 styles: Beveled, Quarter Round, Boxed and Quarter Inch Solid. The 540/240 is made from anodized
aluminum, with a built-in feature that allows you to easily change out an insert and replace it with another. Both the Premier and the 540/240 come in the 9 standard colors shown on the right.