[WE MAKE DIFFERENT]Compare with other styles, We provide two claw hand screw nuts to make it easier and faster for you to install. [DOUBLE PIPE-MOUNTING]The antenna pipe clamp kit is great for mounting round pipe(pole) to another round pipe(pole),the diameter range of round pipe is 1 - 1.8 inch. [JAW BLOCKS MORE STABLE]Antenna mast clamp kit uses jaw blocks with U bolts(2 in distance, 5.5 in length) to give a stronger install for ensuring the pole not slip down. [WIDELY USED]This mast mounting clamp is designed to support most WiFi, PCS, Cellular, TV antennas, Ham, flag post, torches, fishing rods, patio umbrella, parasols. It allows you to vary the mounting pipe length. [MATERIAL]Heavy duty mast to mast mounting hardware is made from Zinc-Plated Steel with anti-rust coating finish. size:14x5.2cm Material:Metal colour:silver Package Contents: 3 Set x Double Antenna Mast Clamp V Jaw Block with U Bolts Only the above package content, other products are not included. Note: Light shooting 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!