I purchased this to reduce noise caused by a Bigsby installation, but it turned out the conversion bar size didn't fit my Epiphone semi-acoustic guitar, so I'm selling it unopened. Retail price: 10,800 yen. Tonepros is also used in genuine Gibson parts, making it ideal for those who are particular about their parts. The rollers glide smoothly, and the condition is excellent. Price negotiable. Guitar Parts Guitar Bigsby Roller Saddle Roller Bridge