●UNIVERSAL THREAD - The thread is 3/8 inch, please make sure your bite alarms as well as rod holders are compatible. ●Feature: The removable adapter can fix the alarm and adapter in advance, so that the preparation time is effectively reduced. ●Material: Aluminum alloy fishing alarm connector, corrosion resistant and wear-resistant, durable and durable. ●Easy to use: One part on the rod pod or bank stick, the other part of the bite alarm or rod rest and just snap it on or off. ●Package: 4pcs fishing alarm connectors.