These braids are designed for dinghy control lines. They are colorful, and very low stretch. The core is made from Dyneema strands and the cover from lightweight multifilament polypropylene. These ropes float and do not absorb moisture. Dyneema« Light has little or no stretch when compared to a polyester line of equivalent diameter. Uses : They are not for use in high load applications, but specifically for low stretch applications. It also retains its round shape, and grips well in a cleat.