VANSON Roller-Bridge, available in Chrome, Black or Gold.
Precision engineered, with high quality plating you get a lot more for your money than the price-point infers. The roller saddles are perfect for using with a Bigsby, or just to reduce string breakages and add sustain on any Les Paul style guitar.
This model has 6.3mm post holes to drop over 6mm posts, typically found on Epiphone guitars and many other similar import guitar brands. They are also supplied with posts and bushings for a new build, but they'll drop straight on to your existing 6mm posts if you have already have a standard Tune-O-Matic style bridge installed.