Mast Mounting U-bolt clamp kit, for Ham UHF VHF CB Cellular Trucker antennas to mast/ tube/ pipes/pole for outside purposes The double U-bolt design to paintings with 3G 4G 5G LTE Puck Style antennas for Sierra wireless,CradlePoint Wireless Puck Antenna gateways. [MATERIAL]U-bolt is product of Zine-Plated Steel with anti-rust coating finish.L type Bracket is made from aluminum [JAW BLOCKS MAKE IT MORE STABLE]Antenna mast clamp kit uses jaw blocks with two lengthy bolts to provide a stronger install for making certain the pole no longer slip down. [Robust and Beautiful]Solid design,strong and durable,beautiful and wear-resistant. Colour:As shown Material:Metal Package Contents: 1 x U-bolt clamp package Only the above equipment content, other merchandise will not be included. Note: Light capturing and various displays can cause the colour of the thing within the picture a bit of different from the genuine thing. The measurement allowed error is +/- 1-3cm.