Made of 100% brass, the antenna has a large surface area and strong signal acceptance. The surface of the antenna is smooth and not easily scratched. If you screwed the antenna, you can You can move anywhere without noise. 11 knots. This rod antenna has reasonable structure, even tension or shrinkage, not as rigid as other antennas. Ideal for FM radio, tape recorder, etc with antenna electronic components. Please allow a little error due to the manual measurement. Please make sure you do not mind before you bid. The color may be different as the difference display, please understand. Hello, please pay attention when purchasing products your receiving address. If your receiving information (such as: name, street, house number, no name on the doorbell/mailbox or other information is incorrect. The order will not be delivered correctly.)