Extender Snaps in Black Nylon Will Quickly Help Your Boat Cover Fit Again These handy snap extensions allow you to quickly and easily add extenders 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 nylon webbing and Fasnap Brand Stainless Steel Snaps. Snaps will not rust or corrode and are 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. Simply attach the extenders to your existing boat canvas and attach the other end to the snap stud on your boat. Available in a Variety of other Colors Too! We Ship Internationally! Northwest Tarp Canvas Take a Look Our Quality Tarps! Have a Nice Day!