Amazon.com: The Beadsmith S-Lon #18 Cord – White Color – Card of 77 Yards - Ideal for Stringing Beading Crochet and Micro-Macrame Jewelry- Compatible with Kumihimo Projects
Nylon Comparison Chart - Creative Yarn Source
Micro Cord: 1.18mm Diameter 125 Feet Spool of Braided Nylon Cord for Beading DIY | eBay