This is a Bigsby-type tremolo spring. It is not a genuine part. I think it can be used on many bizarre guitars. Please refer to the actual size below. ⚫︎Actual Size (approx.) Outer diameter: 17.6mm Length: 30mm Wire diameter: 2mm Please refrain from purchasing if you are looking for perfection or are nervous, as it is stored at home. If you have any questions, Please feel free to ask. Instant purchase is OK.