Extender Straps, Turn Button on Black Polypropylene Webbing Will Add Up To 4" Inches Quickly to Your Boat Canvas - Horizontal Orientation This strap extension allow you to up to add 4" Inches quickly and easily to your boat cover. Great for boat covers that are a little too tight or that have shrunk over the years. Made from heavy duty 1.5" heavy duty polypropylene webbing and quality DOT Scoville Brand fasteners. The finger loop is machine stitched into the webbing with heavy duty polyester thread. You can really crank on these straps if you need to. Snaps are marine grade nickel plated brass and will not rust of corrode. Designed for salt and fresh water environments. Another great product from the leaders in innovation and marine canvas design. Northwest Tarp Canvas specializes in working with boat designers and owners in producing top quality products. Please note orientation of the turn button fastener. We have other straps available if you need an alternate turn button placement. Free Shipping! Manufactured right here in the USA! Questions? Send us an e-mail here . We respond to all e-mails within 24 hours and usually much sooner. Northwest Tarp Canvas - Corpus Christi, Texas We Ship Internationally! Northwest Tarp Canvas Take a Look Our Quality Tarps! Have a Nice Day!