25 feet 0.9mm White Window Blind Cord, String - Honeycomb & Cell Shades Blinds Color: White ---- Diameter 0.9mm ---- Replacement Cord Search using NCMORIN STRING in Amazon search for my other string colors This diameter cord is mostly used on Honeycomb Cell Shades, Blinds Polyester cord - resists effects of sunlight better than most other cords. Wound on a hard white flat spool to eliminate tangling