Dr.Fish High Strength Fishing Ball Bearing Swivel with Coastlock Snap, Welded Ring, Saltwater Standard High Strength 26Lb to 500Lb,100% Copper & Stainless Steel Black Nickle Coated Add to Cart,see Sale Price! STRONG. Swivel made of Copper Body with stainless steel welding ring. Snap made of stainless steel with Black Nickel plated SMOOTH. 6 stainless steel balls loaded for smooth action, rotating without limit and reduce twist to minimum. RELIABLE. Excellent corrosion resistance, abrasion resistance and shock resistance. Approved for using in saltwater, high speed trolling, jigging, offshore fishing. Small size would work great for freshwater like bass fishing. RIGGED IN SECONDS. Quick lock-open design, change leaders or lures in seconds. Multiple size available range 30LB (13kg)-503LB (230kg) tested. Black Nickel Finished.