The Super Agata Bench Capper features a self-adjusting spring-mounted capping mechanism, making it much easier to adjust for different size bottles on the fly. Simply raise the arm all the way up and you will be able to adjust the height of the capper to fit different size bottles. This bench style capper is best suited for standard crown cap beer bottles such as our 12 oz. and 22 oz. For best capping results, the capper should be mounted on a bench or work table using the mounting holes on its base.