Silkon Bead Stringing Cord Size #4 White - 20 yard spool. Made in Switzerland Synthetic stringing material. Resistant to fraying and stretching. Ideal for glass beads and semi-precious stone beads. Color: White, size #4 Quantity per spool: 20 yards / 60 feet / 18 meters Silkon Size Conversions: Size 1-A, Size 2-B, Size 3-E, Size 4-EE, Size 5-F, Size 6-FF, Size 8-FFF Made in Switzerland