1. For Night FishingMade of plastic clip and dual metal bells, they are coupled together by spring that are nailed securely they will not fall off. for professional fishermen and fishing lovers for night fishing, night sea fishing, night lake fishing, fishing tournaments. 2. Sensitive BellJust clip the bell to your fishing rod, Once a fish bites the hook, the bell of the alarm is connected by a precise and sensitive spring can react quickly and send out a crisp sound to remind you that the fish is pulling the rod; You just need to see which indicator light is pulling the rod. 3.Use Alone Or in ComboThe is solid and durable, without sliding rod phenomenon; The galvanized bell is crisp and pleasant, and it can automatically alarm; The double hole design can insert the luminous stick when you don't want to use the alarm bell.