SeaSucker Antenna Magnetic Mount. In addition to metal surfaces the SeaSucker mount can be attached to glass fiberglass and plastic surfaces greatly expanding your placement options. The 3.375in powder coated steel base gives your magnet plenty of real estate to pull on and it pivots so you can easily lay the antenna down when you're running a long whip in low clearance. Plus the soft rubber pad of the vacuum mount is much more gentle on your vehicle's finish than a magnet. Specifications for SeaSucker Magnetic Antenna Mount: Manufacturer: SeaSucker Size: One Size Package Contents: SeaSucker Magnetic Antenna Mount SeaSucker SM6172: Antenna Magnetic Mount