A nice thick heavy duty L-Bracket. Designed with a 3/4" hole for NMO mounts and antennas. Stainless Steel for your trunk, hood or other mounting arrangement you might need. The side with the mounting holes for the screws (screws not included) and the NMO mount hole side is about 1-5/8" wide and 1-5/8" from edge to the fold. It is much thicker and stronger than the cheaper versions. Nice finish looks good on the mobile! Enjoy!