Polyester fiber - resists effects of sunlight better than nylons and mono-filaments. Small diameter makes it inconspicuous.

• 1.4 mm has 90 lb. tensile strength
• 1.8 mm has 155 lb. tensile strength.
• 100 yard roll

All cords are braided to minimize stretch and reduce friction.  You may also use this cord for sewing micro cord when sewing window treatments