Sure, here's the refined and simplified title using the product keywords: *FCS Stand Up Paddle Board Ankle Leash - Black - 10'**

Cord Thickness: 7mm. The cord thickness measures 7 millimeters, providing a sturdy and reliable construction.

Wave Size: 2 - 8 ft. The product is designed to handle wave sizes ranging from 2 to 8 feet, ensuring versatility and adaptability to various water conditions.

Interchangeable smooth rotating nylon cuff and rail saver swivel assembly. The product features an interchangeable smooth rotating nylon cuff and rail saver swivel assembly, allowing for easy adjustment and customization to suit the user's preferences.

Machine stainless steel swivels. The swivels used in the product are made of machine stainless steel, ensuring durability and long-lasting performance.

Engineered polyurethane cord. The cord used in the product is engineered with polyurethane, providing strength, flexibility, and resistance to wear and tear.

The combination of these features ensures a well-designed and functional product that can withstand the demands of various water activities. The 7mm cord thickness provides a sturdy and reliable foundation, while the 2 to 8 ft wave size range allows for versatility in different water conditions. The interchangeable smooth rotating nylon cuff and rail saver swivel assembly offers the user the ability to customize the product to their needs, and the machine stainless steel swivels ensure long-lasting performance. The engineered polyurethane cord adds strength, flexibility, and resistance to wear and tear, further enhancing the overall quality and durability of the product.

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