Features 1. Bullet shape, constructed with rolling swivels on one end and rolling swivel-interlock snap on the other.  2. Easy to rig and change one to another, prevent line twist, lessens the effect on lure action effective.  3. Made of nontoxic lead, environment-friendly, anti-corrosion and wear resistance. 4. Can quickly connect a variety of fishing hook, suitable for any waters. 5. It is good for you fishing on the shore or fishing around rocks and cracks. 6. Specification Weight specification: 15g, 20g 15g Lead Sink Lead length: 3.3CM, total length 6.8CM, diameter 1.0CM 20g Lead Sink Lead length: 3.4CM, total length 6.9CM, diameter 1.1CM Quantity: 10pcs Material: electrolytic lead Scope of application: string hooks, explosion hooks, etc. Package List 10 x Fishing Swivels Sinkers