Features: Make of engineering plastic, resistance to heat and low temperature, and can used for long terms use. It can accurately sense the action of the fish Bites hook and provide alarm prompt through different LED light and sound. It have function of preventing the fishings rod from falling down, and will give alarm when the fishings rod fall down. Suitable for most fishing enthusiasts, whether novices / experienced, you can benefits from help of this tool. Suitable for various fishing scene, including freshwaters lake, river, ocean. It can accurately remind you of fish Bites, easily to catch more fishes. Specifications: Materials: ABS Light colors: redness/yellow/green color/blue Size: about 12x5.5x4cm/4.72x2.16x1.57inch Package Includes: 1pc Fishing Bites Alarm note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.