Add your favorite pendant or wrapped stone! These necklace cords measure approx. 24 inches in length and 1.5 mm in diameter. Each necklace cord also has a 2 inch extension chain to adjust the length to fit your needs. I use these because metal can irritate my skin after a while, and the length allows me to wear my pentagram below my scrub top at work. These cords are really comfortable and durable, and don’t look out of place with any outfit.