【NIGHT FISHING COMPANION】Perfect for night fishing enthusiasts angling on dark riverbanks or quiet lakes. This purple PP indicator helps seniors and hobbyists track bites instantly during midnight shore casting sessions. 【ZERO ROD BURDEN】Weighing only 2.10g / 0.07 oz with the CR425 battery, this ultra-lightweight alert won't bend your sensitive rod tip, ensuring even the tiniest nibble from shy fish is detected without lag. 【INSTANT COLOR CHANGE】Designed for high visibility, the smart sensor turns from a steady green to a bright red the exact millisecond a fish bites, eliminating guesswork in pitch-black evening environments. 【SECURE NO-DAMAGE FIT】Featuring a highly elastic rubber band, this 3.1 cm / 1.22" device mounts tightly without leaving scratches or burrs on your sea, raft, or rock rods during intense outdoor use. 【VERSATILE ROD COMPATIBILITY】Whether casting on ocean piers, reservoirs, or muddy banks at dusk, this compact purple PP accessory serves as a reliable bite alarm across multiple setups like raft and rock poles. Package list: 1x Bite Alarm