[FITMENT]:With a beefier M12 x 30 thread, this spring base is Compatible With LED whip, fiberglass CB antenna, center load antenna, 102 inch whip, and so much more. [HIGH QUALITY]:The Antenna Spring Mount Made from heavy-duty spring steel, Rugged and , Waterproof, shockproof and rustproof,sturdy spring base can withstand a lot of pressure from the device.Protects your whip light from being broken. [FLEXIBLE]:High speeds and corners can do a number on your and antennas, testing them to the limit of their flexibility. A sturdy spring base can take a lot of the stress of your equipment during hard highway or off-road use. Heavy Duty CB Radio Antenna Mount Spring Compatible with Trucks Car RZR UTV Can Am ATV Truck Off Road Material:Metal colour:black Package Contents: 4 x spring base Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.