Perfect Fit: We suggest you choose the 6&'; leash for boards smaller than 7&'; in length (shortboards), and the 8&'; leash for boards 7&'; and larger (mid-length, funboards, longboards, SUP, stand up paddle boards and more) Made to Last: Durable 7mm High Strength Cord, Stainless Steel Swivels to prevent coiling or tangling, Rail Saver to protect your board, Extra Strong Lanyard & Molded Hook Velcro to stay attached in all conditions Made to Be Used: Molded Hook Velcro provides Stronger Grip, Longer Lasting Durability, A Lower Profile and Better Material Consistency vs. cheaper/more traditional woven hook velcro, making it ideal for high-use strenuous applications. Comfortable: 50mm Neoprene Ankle Cuff and Quick Release tab make this leash comfortable while surfing or enjoying paddle sports for hours. Made Better: Made using recycled polypropylene webbing in the cuff & rail saver and an Eco-One additive biofilm to the cord & neoprene in the cuff which allows for faster biodegradation in landfill environments For Surfers, From Surfers: Rock-It Surf has made soft surfboards and accessories that provide the best quality and value combination on the market since 2015. American family-owned business.