Ironwood Pacific Snap Setter Heavy-Duty Snap Tool for Fastening, Replacing Snaps, Repairing Boat Covers, Canvas, Tarps Heavy-Duty Locking Pliers with welded snap dies Durable and ideal for major or minor repair of canvas covers, tarps, boat covers, sail covers, bimini tops, tonneau covers or any heavy fabric Nickel-plated finish resists rust and corrosion from water; great for marine use Adjustable pliers design enables greater leverage over die-and-peg snap tools Snap Setter Tool available with or without extra marine size 20 snaps