Grady Smith on this product:
20"-30" of full adjustablility with this saddle bracket, which has holes drilled in the sides which allows a span pin to be inserted all the way through, locking into position. Also called a two-board to three-board bracket. This means in slang terms or mason jargon that it will hold two DI-65 pine planks or three DI-65 pine planks. This saddle bracket is heavy-duty and has a steep V at the top of the crest so that when installed it's rock solid with no side to side slop. Has a safety chain to prevent slider from being lost, and is powder-coated bright yellow.