This is the OEM replacment tip for most UB Standard model double basses with a 10mm solid steel rod with a threaded tip. The collar and thumb screw must be a shiny plated brass to work with these tips and the rob must be plated chrome.
If you have a
Deluxe model bass with a raw brass collar and thumb screw and a raw steel pin, this will not fit the thread pattern of your bass. Please call for availability on these replacement tips.