Prime Line Products P7947 Gray Spline - 0.19 in. x 500 Ft., Prime-Line, Mfr#: 2052553

Features Round, hollow core and serrated, used to hold screen material in window and screen door frames. Use for aluminum and fiberglass screening. Gray spline Size – 3/16 in. x 500 ft. Item weight – 6.98 lbs.