Sirio Antenna M-1 90 Degrees Stainless Steel Bracket For Cb Antenna Type: mounting bracket Dimension l x w x h: 1.49 x 2.51 x 3.85 inch / 38 x 64 x 98 mm Material: stainless steel Mounting holes: 2 x  16 mm (0.63 inch); fixing holes: 7 x  6.5 mm ( 0.25 inch) Made in italy