I had old-style male screw in bushing with threaded arm on my Kramer Pacer. It would lock up and get in the way when you ran out of thread. This went right in and gripped on the female thread minor...fits solid. Easy to move trem arm out of way without it just hanging there. Easy to install. Only bad thing is that there's not enough clearance in bridge cavity to peak...I can dive, but I can't peak. And it only comes in chrome.