The DB4-PRO Grade Signature Series Bowtie Antenna is made from Stainless Steel for strength, corrosion resistance, and maintenance-free ruggedness. Stainless steel is commonly used in aerospace applications, which makes the DB4-PRO ranked amongst the toughest antennas in our solar system for the harshest weather conditions. With a range of up to 65+ miles, the ultra long range antenna is ideal for suburban or rural areas challenged with receiving signals through heavy foliage outdoors or roofing materials in attic installations. The DB4-PRO comes with a heavy duty u-bolt and mounting clamp (coaxial cable and mount sold separately). Simple to assemble and easy to install.