This Magnetic Antenna Mounting Plate allows operators to install up to four antennas without drilling any holes. This magnetic antenna mounting plate is ideal for law enforcement, DOT workers and anyone else who needs to easily mount an antenna but doesn`t want to drill holes in their truck. This plate features a steel plate to accommodate antennas with magnetic bases. This plate is designed to withstand windloads at highway speeds. User provided equipment may vary. Depending on the size of each antenna`s base, this mounting plate can hold up to four antennas and support a total of 20 lbs Once the desired antennas are installed, the entire assembly can be mounted to the truck via the third brake light. The versatility of magnetic mounting also allows for antennas to be removed or added after the plate is installed without any need to remove the entire mounting plate. Operators simply remove their 3rd brake light, position the mounting plate bracket and reinstall the light through the bracket. Please note this mounting plate is only designed for trucks with incandescent 3rd brake lights that do not have a backup camera. Incandescent mounting plates, LED mounting plates, back up camera mounting plates and non backup camera mounting plates are not interchangeable. At Larson Electronics, we do more than meet your lighting needs. We also provide replacement, retrofit, and upgrade parts as well as industrial grade power accessories. Our craftsmen can custom build any lighting system and/or accessories to fit the unique demands of your operation. A commitment to honesty, quality, and dependability has made Larson Electronics a leader in the lighting and electronics business since 1973. Please notify us for more information about our custom options tailored to meet your specific industry needs. Contains 1 black plate, compatible with Incandescent rear cab lights that do not have a backup camera Easy installation with no drilling required Mounts securely using the rear cab lights and features a weatherproof seal Also available in White, Grey, backup camera and LED compatible versions Item Weight 10 pounds Manufacturer Larson Electronics LLC Item model number 276152 Product Dimensions 22 x 11 x 11 inches