This product are made of high quality material and guaranteed by strict inspection and production. For smooth action, rotating without limit and reduce twist to minimum. Useful accessory for outdoor fishing activities. You are worth it. Hope you enjoy your time. Features: QUALITY MATERIAL: This fishing ball bearing swivel is made of stainless steel and copper material, which is sturdy constructed, ensure high strength. INHERIT FLEXIBILITY: This fishing rolling swivels is light and small, inherit flexibility without compromising strength. HIGH STRENGH: This product is built in stainless steel with two welded rings for high strength. And the strong pulling force is very strong in fishing. HIGH PERFORMENCE: This fishing snap connector has high performance in bass fishing,,general freshwater and saltwater, offshore fishing. SUITABLE PLACE: This fishing ball bearing swivel is good for various rigs and leader trace making. Specifications: Material: Stainless Steel + Copper Color: Silver Quantity: 20pcs/40pcs Type, Length, Tension(kg), Weight(g): 1#, 15.7mm / 0.61", 5, 0.44 2#, 18.7mm / 0.73", 8, 0.62 3#, 19.4mm / 0.76", 10, 0.82 4#, 22.7mm / 0.89", 15, 1.37 5#, 24.6mm / 0.96", 20, 1.89 6#, 29.4mm / 1.15", 25, 2.98 8#, 33.6mm / 1.32", 35, 6.45 Package Included: 20pcs/40pcs swivel solid rings (type and quantity as you choose)