ITEM NAME:10pcs 433M 315M Antenna fr RF Superheterodyne Super-regenerative Wireless Mod-OZ Description : 25CM 50 Ohm single core wire Use for 433M/315M RF wireless transceiver module(Superheterodyne/Super-regenerative) When the antenna is used to straighten 433m Antenna length 18CM(you can cutting it) 315M Antenna length 24CM Diameter : 1.05/0.5mm You'll receive: 10PCS x Antenna.433m Antenna length 18CM(you can cutting it). 315M Antenna length 24CM. 10PCS x Antenna. Use for 433M/315M RF wireless transceiver module(Superheterodyne/Super-regenerative). When the antenna is used to straighten.