Make-2-Fit P 7845 Screen Retainer Spline, 0.313 in D, 500 ft L, Vinyl, Black, Flat

This item is a flat vinyl screen retainer spline typically used for patio screen rooms. The new spline is rolled into a groove for securing various types of screen fabric into the screen room framing. It measures 0.315 in width. It is a top quality vinyl with a flat bottom and curved top edge.