Flat Screen Retainer Spline; 5/16 in. wide, Black, 500 ft. per roll

The spline arrived on a spool (maybe I should say "off" a spool). The spool had a cardboard center that was glued to the plastic sides of the spool with some kind of wet, gooey adhesive. During the process of removing the spline from the shipping container, one of the plastic walls became detached from the cardboard center. I turned the box over, trying to preserve as much of the wrap as possible, but then the other plastic wall came off. I unwound all 500 feet on the living room floor and then reassembeled the spool using sheet metal screws to hold the plastic and cardboard pieces together. Had to clean up the gooey mess and then start rewinding the spline onto the spool. Good thing there was a football game on TV!