An easy way to drop from E to D and back without unclamping! Edward Van Halen has created a revolutionary new patented device, called the EVH D-Tuna, that enables players to drop from E to D and back, in an instant. He's been using it on his guitars...
There Is No Better, Or Cheaper, Device On The Market To Keep Your Trem Working At Its Best. Simple To Install, No Engineering Degree Or Machine Shop Necessary!
This is a standard tremolo spring claw. It attaches to the inside of the tremolo spring cavity, and anchors the tremolo springs at the opposite end from where they attach to the bridge..