The 36" body of this Marine SuperBungee Stretches a whopping 550% to 198"! Cleat-Loop ends add an additional 12", which means this cord extends 17.5 FEET. Marine SuperBungees are The Best Bungees to Secure your Water Gear and the most convenient Temporary or Supplemental Dock Line to keep your watercraft right where you want it. These cords are Super Strong because they are Made from our Patented Annular Pleated Circular Braid consisting of 48 separate yarns of 3,750 Denier Each! When used as a dock line, these Compact & Convenient Water Bungees prevent excess shock/collisions to your boat and anchor points. See Boat Dock Diagram in Images. Convenient ends for attaching to Cleats or other anchoring points like eye bolts. Quick & Easy with No Tying Knots US-BUILT, Durable & Impact-Reducing Anti-Oxidant UV & Moisture-Resistant Coating on External Braid & Internal Elastic 6-Month Warranty Patented in US, Canada, Mexico & other countries Intended for transient dock line use for Class 2 boats and smaller (under 40 ft) in protected waters, and/or in conjunction with permanent dock lines. Always use a sufficient number and configuration of dock lines to maintain control over your watercraft. Use in accordance with any applicable laws / regulations. Marine SuperBungees with one or more stainless steel carabiners DO NOT FLOAT.