They sell two sizes - up to 40 and up to 46 inches. I use a 42 inch belt so I ordered more than 46. The belt that was delivered was too big. There was over a foot, maybe a foot and a half, of extra straps. They say don't try to shorten the belt, and with good reason; I almost tore the belt, trying to remove everything superfluous. So unless you're selling inch-perfect straps, someone will be a fool to buy your product.