Our shop sells original authentic mountain bike/road bike speedometer/【Stopwatch】Stainless steel strong magnetic induction head. Brand new in bulk, good quality, authentic goods, fine workmanship, beautiful, stainless iron material, sturdy and durable. Each with fixing screws![](https://img.alicdn.com/imgextra/i2/382853588/TB2Pk14zf1TBuNjy0FjXXajyXXa_!!382853588.jpg)
, Fixed ring and strong magnetic induction head, suitable for wired and wireless code meters. Each is only 5 yuan, and more than 20 can be sold for 3.5 yuan. Only one batch is sold hot.