I bought this on Mercari but never used it, so it's been sitting around. Here's the product description from the purchase page: String pitch: 18.5mm This is a bridge from a Fender American Ultra 5-string bass. I replaced it with a different bridge about 3 months after buying it, so it's in relatively good condition. The item includes only the bridge itself, as shown in the photos. I'm embarrassed to say that I've lost the screws...