Sup Surf Board Leash
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1. MORE STRONG & SAFE: Made of Super Strong 6mm urethane cord, Strong enough to handle the longest and heaviest boards. 2. MORE COMFORTABLE AND EASY to USE: Made of TPU elastic polyurethane with soft sponge, you will forget you are wearing it.Easy to attach to your board and prevents rail wear or dings 3. MORE DURABLE: Connection hardware made of durable stainless steel, which can be able to resist the sea water corrosion for a very long time; you don't need to change the surf leash frequently 4. SPECIFICATIONS: -Material: TPU（Polyurethane elasticity） -Hardness(Shore): 90±2 -Specific Gravity(g/cm3): 1.20 -Resilience(％): 40 -Ultimate Elongation(％)>450 -Tear Strength(N/mm)>80