These are one inch wide you you choose the length. Sizing is in inches, and a 30 inch belt will have two holes to each side of the 30 inch hole, so it will be adjustable from. About 27-33 inches! If you don't know what size you need, you should order a belt 2-3 inches bigger than the waist of your pants, so if your pants are a 27 at the waist, order a 30 inch belt! Select the pattern you want on the listing, and LEAVE THE BELT SIZE YOU WANT IN THE NOTES TO SELLER BOX AT CHECKOUT. Message me if you need something different than what I offer here. As of now I do not do belts where you can change the buckle.