The invention relates to a sinker, including: a non lead body, which has a streamline body part and a cone-shaped end which is smoothly connected with the body part； a tie part, which is arranged at the end opposite to the cone-shaped end of the non lead body, for a line system tie.本創作關於一種沉子，包括：一非鉛本體，具有一流線形之身部及一與該身部平滑連接之錐狀末端；一繫結部，設於該非鉛本體之與該錐狀末端相對之一端，供一線體繫結。
