Yoshikawa Dr.Fish Fishing Weights Quick Rig Rolling Swivel with Interlock Snap Bullet Lead Sinker Connector Inline Carolina Ready Rig 3/10-1/2oz (Pack of 10) 3 in 1 INLINE CONSRUSTION. Bullet lead weight in the middle, built-in rolling swivels on one end and rolling swivel-interlock snap STRONG and DURABLE. Bullet weight made of nontoxic lead, environment-friendly. Swivel and snap is anti-corrosion. SAVE TIME and LESSENS HASSLE. Rig and change lure, leader in seconds. No worry about messing all lines and leaders up. Change rig at the right time quickly to assure more catching. MULTI PURPOSE. Ideal for spinning, casting, trolling, jigging, even downrigger 3 Sizes available. 3/10oz, 2/5oz, 1/2oz.