Enhance the appearance of your field! Don't let anybody take a swing at your fences. Protect your players from injury against the top of any chain link fence while enhancing your ballpark's appearance. Bright Yellow corrugated plastic tubing outlines your ballpark and gives you that "big league" look. Ships freight. Features. 4.5" diameter. 100' coil. Pre-slit for easy installation. 19" color-matched ties available.