Canvas Snap Kit, Marine Grade Stainless Steel, Boat Cover Snaps kit tool, 354PCS ? Sturdy Canvas Snap Pliers: Secure snap design with adjustable pliers to prevent falling off during installation; ideal for metal snaps on leather, canvas, carpet, tarps, and more. ? Efficient and Powerful: Adjustable pliers provide superior leverage and a vice grip for tighter, reliable snaps that won?t loosen easily. ? Multi-Functional Tool: Includes a punching function for precise hole-making and a magnetic design for quick, easy snap changes. ? Durable Construction: Made from rust-resistant alloy steel, built to last through heavy use without corrosion. ? Versatile Fit: Adjustable tail bolt accommodates different material thicknesses for perfect snaps on canvas, boat covers, leather, and fabrics. ? Complete Set: Comes with a snap tool, extra fasteners, 1 snap button fastener, 3 dies, and 100 snap button sets in a convenient storage box.