Hollow Design: The core of the fishing weights sinkers is molded hollow with smooth inner, which prevents hurting fishing line or leader materials with burs and easy to pierce. Electrolytic Lead: Chemical inertness of lead offers resistance to corrosion, while its high density in an egg shape guarantees fast sinking and lifting. Supporting Gears: Recommend held by snap swivel or rolling swivel to prevent the fishing weights sinkers from sliding over fishing line. Durable material: the fishing weight is made of material, which is safe to use, non-toxic and odorless, non-rust and durable to last a long life, as must-have fishing accessory in your tackle box Easy to use: each egg oval shaped fishing weight features with a smooth round hole with no burrs inside, easy for you to pass through your fishing line without cutting your line or tying knots, very convenient for you to install Wide Application: The various sizes of fishing weights sinkers is available in most fishing occasions like sea, offshore, lake, river, reservoir, pond for bass, catfish, bullheads, bluefish, etc. Deep sea fishing is also acceptable. Colour:Silver Material:lead Size:10g: 1x1x1.5cm Package Contents: 30 x fishing weights sinkers