Made of durable linen, this black double-strand cord for necklaces or pendants has silver coated caps made of lead-free pewter on either end, along with an extension chain that adds up to 2" to its 20" length. Easily switched between different pendants or charms, this thin yet powerful cord is ideal for jewelry of any size, though it is best for slender jewelry that would look odd set onto a thicker cord or chain.