Adjustable, vertically adjustable for different bottle sizes, and can cap both 26 and 29mm bottles This professional bench bottle capper is great for homebrewed or re-sealing wine and bottles The cap bench features a textured nonslip base that holds the bottle still during the capping process The capping machine features a practical bells that secures the cap.You can put the cap in place without holding it separately This cap machine comes with built-in holes so you can bolt it down and make sure it will never budge