This compact 2.4GHz omnidirectional "rubber-duck" WiFi antenna provides broad coverage and 5dBi gain. It is a coaxial sleeve design with an omni-directional pattern. It is ideally suited for IEEE 802.11b and 802.11g wireless LANs,

This flexible antenna features a tilt-and-swivel TNC male connector, allowing them to be used vertically, at a right angle, or any angle in-between. It is suitable as a replacement RF antenna for many access points and radios that are equipped with TNC male connectors including D-LinkR, LinksysR WET11 and others.
for wireless router and WLAN PCI card

Diameter: 13.2mm
Length: 144mm
802.11b, 802.11g
TNC male Connector
Flexible WiFi antenna
Tilt and swivel design