This item has been in long-term storage. It was once attached to a used body, but I purchased a different tailpiece, so I'm offering this one to someone who wants it. There is some rust from storage, but it doesn't affect the strength, so please be aware of that. It looks similar to the trapeze tailpiece of an Epiphone Viola Bass. I also have other parts for so-called violin basses (Hofner type) available, so please check them out if you're interested. It seems like it could also be used for a 4-string acoustic bass. #Hofner #ViolinBass