| 摘要 |
PURPOSE: A fishing sinker is provided to improve the convenience of user by enabling a user to easily attach/release the fishing sinker like as a gum, and to restrict the contamination of environment by adopting a harmless material. CONSTITUTION: The fishing sinker is manufactured by mixing natural rubber of 1 kilogram, tungsten of 25 kilograms, and mixing oil of 1 kilogram. The natural rubber and the tungsten are harmless to environment. The fishing sinker is manufactured by mixing the components shaped into gum form, thus the attachment/release work of the fishing sinker onto a fishing needle is able to be easily performed.
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