This screen retainer spline is of pinnacle calibre vinyl that is call in shape. It features a false core center, it is on its outdoor surface, and it is sarcastic in color. Vinyl screen retainer spline equivalent this one is to hold fiberglass and aluminum screen material to screen frames of both windows and doors. This retainer spline an alfresco diameter of .140 -LRB- 9/64 '' -RRB- and measures 25 feet in length.