Fishing olive lead sinker with scale and plastic core, Tongxin style, rugby-shaped electrolytic lead weight for sea fishing, available in 10g to 150g sizes including 20g, 30g, 40g, 50g, 60g, 70g, 80g, 90g, 100g, 120g, 150g specifications.
Tongxin Scale Plastic Core Olive Lead Sinker: Rugby-Shaped Electrolytic Weights from 10g to 150g

This range of olive lead sinkers is designed for sea fishing, featuring the Tongxin style with a distinctive rugby shape and an integrated plastic core. Manufactured from electrolytic lead, these sinkers provide the necessary weight to reach fishing depths effectively. The product’s key feature is its internal construction, where a plastic component is injection moulded into the centre of the lead body during manufacturing. Available across a spectrum of eleven precise weights, it allows anglers to match their gear to specific conditions, from light inshore work to heavier offshore applications. The external scale pattern adds texture to the surface.
Features and Construction

The sinker combines traditional lead weighting with a specific internal design for functional sea fishing use. Its shape and core are the primary points of differentiation from standard leads.
Material and Build
The main body is made from electrolytic lead, a form of refined lead known for its density and uniformity, which is crucial for consistent casting weight and sink rate. The manufacturing process involves creating a rugby-shaped mould into which the molten lead is poured. A distinct step in this process is the inner core injection moulding, where a plastic insert is formed within the lead. This core may serve as an attachment point or alter the sinker's balance in the water. The external scale pattern is moulded onto the surface during casting.
Size and Practical Fit
The product is offered not as a single size but as a comprehensive set of weight options. The specifications run from 10 grams, suitable for lighter rigs or shallow water, incrementally up to 150 grams for deep water or strong currents. The available weights are 10g, 20g, 30g, 40g, 50g, 60g, 70g, 80g, 90g, 100g, 120g, and 150g. This allows for precise matching of sinker to rod power, line strength, and target species. The olive pendant shape with its tapered ends is designed to minimise water resistance.
Uses and Placement

These sinkers are intended for saltwater fishing scenarios where getting a bait or lure to the bottom quickly is a priority. Their design addresses specific angling needs.
Event or Professional Use
For charter boat fishing or competitive sea angling, having a reliable, consistent sinker is essential. The range of weights allows a skipper or guide to equip clients for different marks throughout a day, from wrecks requiring 150g leads to sandy flats where a 30g weight is sufficient. The plastic core could be utilised in specific commercial rigging systems, potentially for attaching snap swivels or creating a weak point. The scale texture might also provide a slight grip for certain knot types.
Everyday Home Use
For the recreational sea angler fishing from shore, pier, or kayak, these sinkers offer a specialised tool. The rugby shape is less prone to rolling on a seabed with current compared to a round sinker, helping to hold position. An angler building their own paternoster or running ledger rigs can select the exact weight needed for the day’s conditions from the detailed specification list. The single-unit packaging means buying only the specific weight required.
Benefits and Buying Value

The value of this product lies in its specialised design and the clarity of its available specifications, allowing for an informed purchase.
Reuse and Low Maintenance
Lead sinkers are inherently reusable if retrieved and not snagged. The robust nature of electrolytic lead means it can withstand multiple casts and retrieves without significant wear, barring direct impacts on rocks. The plastic core is sealed within the lead, protecting it from saltwater corrosion. Maintenance is minimal; a quick rinse in fresh water after use will prevent salt buildup on the scale pattern. Their durability makes them a long-lasting component of a tackle box.
Why Choose This Product
Choose this olive lead sinker if your sea fishing requires a weight with a specific internal plastic core design and a rugby-shaped profile. The clear advantage is the extensive and precise weight range, enabling very fine-tuned gear selection. It is a product defined by its stated specifications—material, shape, core type, and weights—rather than vague claims. It suits an angler who understands these features and has a use for them in their fishing methodology.

