[WIDELY USED]This mast mounting is designed to hold Wifi, PCS, cellular, TV Antennas, CB, Ham, pipe, flag pole, torches, umbrella, parasols, fishing rods. It allows you to vary the mounting pipe length. [3 ASSEMBLE SETUP ]The antenna pipe kit is great for mounting round pipe(pole) to another round pipe(pole), railings to another railings, or mounting round pipe(pole) to railings.(The diameter range of round pipes is 1 - 1.8inch, the diameter range of pipes is 0 - 1.8inch) [JAW BLOCKS MAKE IT MORE STABLE]Antenna mast kit uses jaw blocks with two long bolts(2.2 inch in distance, 5.5 inch in length) to give a stronger install for ensuring the pole not slip . [MATERIAL]Heavy duty mast to mast mounting hardware is made from Zine-Plated Steel with anti-rust coating finish. [TWO SMALL WRENCHES INCLUDED]We two small wrenches to make it easier and faster for you to install. Colour: silver Material: Iron + plated white Package Contents: 3 x Antenna Mast 2 x wrench Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.