Tension sets hold the vertical cables in place, so they don't rock back and forth as much, safeguarding the entire wine collection. In cable wine racks, one(1) bottle is carried by a pair of horizontal cables. These horizontal cables are slightly loose, so they're able to cradle the bottles, preventing them from slipping off. Learn more about this project here: https://www.winecellarsbycoastal.com/ultra-modern-home-wine-cellar.aspx Coastal Custom Wine Cellars 8 Waltham Rd. Ladera Ranch, CA 92694 +1 (949) 200-8134