1Made of premium stainless steel material, sturdy, anti-rust, anti-corrosion, durable. 2Excellent flexibility ensures perfect swiveling, high strength and resistant to heavy dragging of fish. 3Fine machining makes the hole sleek and not harmful to fishing line. 4Easy to use, barrel design offers better stability, allowing quick and easy connection. 5Can be applied to almost all kinds of fishing, used for connecting soft bait, hard bait, hook, sinker, etc.