YYGIFT Set of 20 LED Twin Bells Fishing Tackle Night Sea Fishing Rod LED Light Clip with Twin Bells Ring Fishing Bite Alarm Indicator On Fishing Rod Easy To Use .Just clip the bell to your fishing rod ,and it will ring when fish strike. Suitable for different kinds of fishing rod.It is a perfect accessory for your fishing rod. Great for professional fishermen and people who want to fish at night . Prefect for fishing at night,in complete darkness. Powered supply: 2 x AG3/LR41 button batteries .