DURABLE: Connection hardware made of durable stainless steel, which can be able to resist the sea water corrosion for a very long time International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions Protection: The triple wrap rail saver is designed carefully to offer protection of your board with less drag on the water's surface Durable & Convenient: The double swivels are made of durable stainless steel to better resist the sea water corrosion; They also allows the leash to spin and twist freely, preventing tangles that can trip up your feet