Truly nothing is as soft or as smooth as silk jewelry cord! Silk, also referred to as Naturseide, is the traditional stringing material used by beaders for centuries. Each 100% silk bead cord has a twisted stainless steel needle at the end - Saves threading time!. Doubling the thread is unnecessary, and the cord can be easily knotted because the thread has the correct twist. Approximately 79 inches per card. Remember, when you buy your beads and bead supplies from Artbeads.com, FREE SHIPPING is available in the USA with orders of $10 or more.