3 Piece Set Lift-The-Dot Fastener's with Black Oxide Finish Top Quality Dot Brand Fastener's Socket Backing Plate - Widely Used in Boating, Aviation Military Applications Made from durable black oxide brass, this socket will snap tightly. Strong enough to pierce through several layers of fabric, it's ideal for jobs using marine canvas and upholstery fabric. Applications include boat covers, boat seats, gear bags, luggage, outdoor fabric, tents, and awnings. Lift-the-DOT setting tools make installing fasteners a breeze. For optimal hold, Lift-the-DOT fasteners secure on three sides and release by raising the fourth side where the dot appears. Scovill's DOT product series has delivered stability and quality for over 100 years. All fasteners are manufactured in the USA. Trademark: DOT and Lift-The-Dot are registered trademarks of Scovill Fasteners, Inc. We Ship Internationally! Northwest Tarp Canvas Have a Nice Day!