MATERIALThe middle made of durable iron material, it has good durability and will not be easily damaged or deformed. Both ends made by clear plastic. Removable tube. You can insert the florescent tube inside. Plastic clips to protect your fishing line. Light weight INDICATORCarp rod bite indicator can give you hints by shaking, helping you to have a more relaxed and enjoyable fishing activity. It has a simple application method and can be easily clamped on your fishing rod. SIGNALFishing alarms could further improve fishing bite alarm's signal sensitivity. (Chain style swinger: small size and easy to carry, but need properly operation to avoid swinger bump to stand bracket. WIDE USEBite indicator has a wide range of uses, can play an effective warning reminder and help relieve eye fatigue. Professional and practical alarms can make you have a more enjoyable fishing trip. EASY to USEIt can be easily fixed on your fishing rod, allowing you to have a simpler application method. Adjustable plastic clip to protect your fishing line. Light weight with nice finished black chain.