What is this foreign word we speak of?! This is a type of stringing material made out of bonded nylon also known as C-Lon, which are the same product but different brand names. S-Lon is great for knotting smooth or faceted rounds and compared to silk it’s a much stronger and more durable cord. It comes in many colors and sizes which makes it a great option when knotting or stringing. If you use a thick enough S-Lon, you won’t even need to use a needle. S-Lon is also great for macrame bracelets. It is incredibly strong and if you burn the end, it will never fray. Use bead tips to attach the clasp for the most polished look.