This is our most popular option, because it fits so many different tracks. These adapt to your track cavity as they are self-forming. This is your choice, if your sail currently attaches to your mast with slugs. Round and half -round slugs and barrels fit inside these tracks. The cushion hydrophilic foam, not only adapts to your track profile but becomes ultra-absorbent, holding more of your favorite lubrication than you might ever imagine.
