[WE MAKE DIFFERENT] Compared with other styles, this product includes two claw hand screw nuts to make installation easier and faster. [DOUBLE PIPE-MOUNTING] The antenna pipe clamp kit is designed for mounting a round pipe (pole) to another round pipe (pole). The compatible pipe diameter range is 1 - 1.8 inches. [JAW BLOCKS MAKE IT MORE STABLE] This antenna mast clamp uses jaw blocks with U-bolts to provide a stronger and more secure installation, helping prevent slippage. [WIDELY USED] This mast mounting clamp is suitable for most WiFi, PCS, Cellular, TV antennas, Ham antennas, flag posts, torches, fishing rods, patio umbrellas, and parasols. It allows flexibility in adjusting the mounting pipe length. [MATERIAL] Heavy-duty mast-to-mast mounting hardware is constructed from metal with an anti-rust coating finish. Size: 14 x 5.2 cm Material: Metal Color: Silver Package Contents: 2 Sets x Double Antenna Mast Clamp V Jaw Block with U Bolts Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.