Stainless steel masthead mount for #V9125, 10” TV antenna. Mounting tabs measure 1-3/4” H x 3/4” L. Tabs can be bent to accommodate various mast diameters. The smooth mounting tube is 1” (25mm) in diameter. The V9125 antenna slips over the tube and clamps into place. This mount will only work for Glomex antennas.