SnapRite® Snap Fastener Button 1/4" Barrel (Stainless Steel) is a top-quality, stainless steel button for use with the SnapRite tools. This button is specially designed with a hole in the top for use with the Sailrite® SnapRite® System. Highly resistant to corrosion, this marine snap button is perfect for use with sail covers, cushions, dodgers, biminis and other marine applications. Snap fasteners are also great for general home projects and covers.