Perfect 1:1 replaceable bridge for the old ABR-1's found on vintage Gibson guitars.
Finally no rattling sounds anymore due to the screws being secured with clips, it's a very tight design.
Be aware, replacing saddles is not easy and requires replacement of the screw retaining clip with a new one. Luckily 3 new ones are included in the set, as a new screw (they tend to get damaged too when replacing saddles) and one spare saddle.
Keep in mind you still have to notch the saddles before you can use it, but using the old Gibson method (hammering notches with an set of old strings) is not that hard.
Overall it's a big improvement for my late 60's ES335.