You will get 40 marine snap kits, including 20 pcs 10mm long screw bases, 20 pcs 15mm long screw bases, 40 caps and 40 sockets, 3 in a beautiful storage box Install tools. The button snap set is very convenient and easy to use. Just screw on, attach the cover clip, and snap on. This canvas snap tool worked great and made our installation and removal easy The marine canvas snaps are made of marine-grade high-quality stainless steel with a metal finish. Metal snaps are durable, rust and corrosion resistant This snap repair kit can be used for boat seats, boat canvas covers, porches, , furniture, car tents, golf cart covers, motorcycle helmets and more. This boat accessory is widely used and outdoor for canvas, tarp, tent, cushion Colour:Silver Material:Metal Package Contents: 1set * boat cover snaps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.