The soft iron chain of the bite alarm tool is located on the coating, which is durable and will not rust No matter if the fish bites or returns to the fishing line, the fishing alarm can work normally The bite indicator is used in conjunction with the alarm, the main function is to place the alarm on the fishing reel The bite indicator does not light up in the standby state, and flashes when a fish is caught, and obtains power from the alarm Each weighs 20 grams, but you can increase the weight by inserting the minute hand in the middle The carp fishing bite indicator is simple to use, very professional and very practical. It is small, light and compact, and easy to carry. The bite indicator flashes only when a fish is caught, and obtains energy from the alarm. This is an ideal fishing tackle for fishing enthusiasts. Features Carp fishing alarm chains -Color: red, green, yellow, blue. -Material: Iron coating. -Size: Length 33 cm/12.99 inch. There is no lamp on the iron flexible chain, so it is impossible to place a fluorescent lamp. The alarm does not include a battery. Package Including 4 * Carp fishing alarm chains