The J&H LED 6-inch Side Tenon bracket is expertly designed to perfectly fit square poles of any dimension. Installation couldn't be easier - simply drill two holes on the side of the pole and firmly attach the bracket. This versatile bracket seamlessly accommodates any standard 2 3/8-inch slip fitter, ensuring a smooth and hassle-free fit. The horizontal arm also referred to as the tenon, features a 2 3/8-inch outside diameter (OD), making it compatible with various lighting fixtures.