Made of high-quality engineering plastic material, designed to be strong and durable. Compact and lightweight design, easy to install and carry. Waterproof construction allows use in rainy conditions. Equipped with USB rechargeable lithium battery for repeated use. Features a gravity induction switch: when the fishing rod is lifted from the rack, the lamp automatically turns on with blue LED illumination. Securely attaches to fishing rod handles with included rubber bands. Power button located at the rear; press to manually activate. Specifications: Battery: 300mAh lithium battery Compatible with fishing rod handle diameter: 18–24mm Charging method: USB 5V Charging time: Approximately 2 hours Working time: Up to 12 hours Light source: LED Color: Black Material: Plastic Size: 75 x 30mm Package Contents: 2 x Lamp 2 x USB cable 4 x Rubber band Note: Lighting and display differences may cause slight color variation between the image and actual item. Measurement may vary by ±1–3cm.