General description The 2 Pcs Double Antenna Pole Clamp V-Shaped Jaw Block is a versatile and heavy-duty mounting solution designed for various outdoor applications. It is perfect for securing torches, flagpoles, umbrellas, radio/TV antennas, and other decorations. This adjustable pole clamp kit allows for easy installation on different types of poles and railings. Technical specifications Material: Galvanized steel Size: Approximately 15 x 7 cm Diameter range of round pipes: 1-1.8 inches Diameter range of square pipes: 0-1.8 inches Jaw block bolt spacing: 2.2 inches apart Jaw block length: 5.49 inches Measurement allowed error: +/- 1-3 cm Installation Easy to install with included small wrenches Attaches quickly and securely to most decks, balusters, railings, or pipes Usage Ideal for mounting patio umbrellas, flagpoles, and other outdoor decorations Can be used to connect round pipes to round pipes, square railings to square railings, or round pipes to square railings Other