Soap Rope: Our soap ropes are super soft, flexible, and waterproof. Made of braided nylon rope, they are perfect for making soap on a rope. Though they work best with our 3D soap molds, these ropes are suitable for most any mold for Soap on a Rope. The soap rope features ends that are heat sealed together into a round tab, which allows the rope to be easily placed into your mold. Each rope is 18" long and .25" diameter. Choose from colors below: