Super-Lon Bead Cord Primary Mix. Superlon is strong, durable, and great nylon thread for a variety of stringing and beading projects. String it, crochet it, or create micro-macrame jewelry. This mix contains 4 bobbins of #18 twisted nylon multi-filament cord in red, green, blue, and yellow. Each spool contains 77 yards of cord that fits a size 12 beading needle. Sold 4 spools per pack.