Mast Mounting U-bolt clamp kit, for Ham UHF VHF CB Cellular Trucker antennas to mast/ tube/ pipes/pole for outdoor applications The double U-bolt design to work with 3G 4G 5G LTE Puck Style antennas for , Wireless Puck Antenna gateways. [MATERIAL]U-bolt is made from Zine-Plated Steel with anti-rust coating finish.L type Bracket is made of aluminum [JAW BLOCKS MORE STABLE]Antenna mast clamp kit uses jaw blocks with two long bolts to give a stronger install for ensuring the pole not slip down. [Robust and Beautiful]Solid design,strong and ,beautiful and wear-.<br><br>Colour:As shown Material:Metal<br><br>Package Contents: 1 x U-bolt clamp kit<br><br>Only the above package content, other products are not included. Note: Light 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.