Sampo Swivel with Sampo’s exclusive easy-to-use Interlock Snap, for quick connection of lures and leaders. Both snap and split ring are matched to swivel size for the finest no-twist protection.Nickel or Black finish.A Series and D Series are the same product, packaged in different quantities. A Series is smaller quanity bags, sold 12 bags to a box. D Series is 12 swivels per bag and can be ordered individually.Nickel Finish (A Series):New Item No.OldItem No.Lb. TestSwivels/PackPacks/Box4001-1A1LB103124001-2A2LB123124001-3A3LB153124001-4A4LB303124001-5A5LB502124001-6A6LB70212WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov