Mast Mounting U-bolt clamp kit, for Ham UHF VHF CB Cellular Trucker antennas to mast/ tube/ pipes/pole for outdoor applicationsThe double U-bolt design to work with 3G 4G 5G LTE Style antennas for wireless, Wireless Antenna gateways.[MATERIAL]U-bolt is made from Zine-Plated Steel with anti-rust coating finish.L type Bracket is made of aluminum[ BLOCKS MORE STABLE]Antenna mast clamp kit uses blocks with two long to give a stronger install for ensuring the pole not slip down.[ and Beautiful]Solid design,strong and durable,beautiful and wear-resistant.Colour:As shownMaterial:MetalPackage Contents:1 x U-bolt clamp kitOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia