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. material: the fishing weight is made of material, which is safe to use, non- and odorless, non-rust and to last a , 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 to pass through your fishing line without cutting your line or tying knots, very convenient to install Wide Application: The sizes of fishing weights sinkers is available in most fishing occasions like sea, offshore, lake, river, reservoir, pond for bass, catfish, bullheads, bluefish, etc. fishing is also acceptable. Colour:Silver Material:lead Size:30g: 1.5x1.5x2.3cm Package Contents: 20 x fishing weights sinkers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.