Wilson 991155 Long Chrome Replacement Radials is a set of 3 long replacement grounding radials for trucker, marine, and omni-directional antennas, allowing for quick replacement of broken or lost ground radials for Wilson Trucker Antennas 311101, 311119 and 311133, Wilson Marine Antenna 311130, and Wilson Omni-Directional Antennas 311201 and 311203. Need the short chrome radials? Check out Wilson 991168 Replacement Radials.