这是一个通用鼠标滚轮，可以适配大部分鼠标，支撑轴较长，可根据需求自行裁切，建议使用较细的喷嘴打印，效果更佳

This is a universal mouse scroll wheel that can fit most mice. It has a longer support shaft which can be cut according to your needs. It is recommended to use a finer nozzle for printing for better results.