Features: Rust resistance in salt water applications, which will last long, 100% marine grade stainless steel snaps .Convenient: These boat cover snaps are stored in a plastic storage box with removable partitions for your convenience at any time .Quantity: The package will come with 3pcs setting tool, 60pcs socket, 60pcs cap, 60pcs screws(15mm*10mm) in a transparent storage box .Widely application: Canvas snaps are widely used for canvas, tarpaulins, tents, awnings, sailcloth, lawn furniture,etc. Suitable for indoor and outdoor applications .Material: These canvas snaps are made of high quality stainless steel, which offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas .