Features 1、Plastic head is for line tension to improve hooked sensitivity. 2、Unscrew the head to put your glow stick(not included) as an indicator to find the fishing rod during night fishing. 3、Easily connect to your fishing alarm(not included) for easy fishing experience. 4、Great fishing tool for you. Great fishing tool during night fishing or in weak light environment. Feature: Plastic head is for line tension to improve hooked sensitivity. Unscrew the head to put your glow stick(not included) as an indicator to find the fishing rod during night fishing. Easily connect to your fishing alarm(not included) for easy fishing experience. Great fishing tool for you. Specification: Color: Red / Yellow / Blue / Green / Red&Yellow&Blue&Green (optional) Material: Metal + Plastic Chain length: Approx. 21.5 cm / 8.5 in Unit weight: Approx. 24.8 g / 0.9 oz Package weight: Approx. 25 - 100 g / 0.9 - 3.5 oz Package list: 4* Fishing Alarm Swinger Package List 4* Fishing Alarm Swinger