Feature: 1. Pack of 4 illumitors in different lighting colors: Red, Blue, Green, Yellow. 2. Built-in LED light will flash when fish swallows bite. 3. Metal head is for line tension to improve hooked sensitivity. 4. 2.5mm plug to plug in your fishing alarm (not included). 5. Metal counter weight meets different fishing demands. 6. 8.6in chain to convenient to use. 7. Comes with box for good protection and easy carrying. 8. Good indicator for night fishing. Specification: Features: Pack of 4 illumitors in different lighting colors: Red, Blue, Green, Yellow. Built-in LED light will flash when fish swallows bite. Metal head is for line tension to improve hooked sensitivity. 2.5mm plug to plug in your fishing alarm (not included). Metal counter weight meets different fishing demands. 8.6in chain to convenient to use. Comes with box for good protection and easy carrying. Good indicator for night fishing. Specifications: Material: Iron + Plastic Chain Length: 22cm / 8.7in Total Length: 35cm / 13.8in Package Size: 20.5 * 14.2 * 2.5cm / 8.1 * 5.6 * 1in Package Weight: 463g / 1lb Package List: 4 * Fishing Bite Indicator 1 * Carry Case Package List: 4 * Fishing Bite Indicator 1 * Carry Case