1.HIGH-QUALITY MATERIAL:Made of high-quality carbon steel, nickel-plated, strong corrosion resistance, rust resistance and wear resistance, high hardness, and no deformation. 2.DESIGN FEATURE: Double insurance, 8-character swivel design allows the flexible drum to rotate freely at both ends of the swivel, convenient switching, high tensile strength, no need to worry about entanglement or knotting of the fishing line. 3.QUICK REPLACEMENT: The rolling swivel with snap buckle can save you the time of assembling and fixing fishing tackle. The interlocking fishing snap buckle with snap buckle can help you quickly replace the bait, lead and fishing line in a few seconds. 4.WIDELY APPLICATION:Suitable for freshwater and seawater fishing, lure fishing, high-speed trolling, jigging, ocean fishing, etc. 5.PACKAGE:There are 100 fishing rotary snaps in 5 sizes, 12 (26 mm), 10 (31 mm), 8 (34,5 mm), 6 (41 mm), 4 ( 45 mm). It is convenient for you to change the size of fishing tackle according to the size of the fish.