The EVH D-Tuna is a unique patented device that enables players to drop
the E to D and back, in an instant. D-Tuna has been standard equipment
on Eddie Van Halen’s personal guitars as well as signature series
locking tremolo-equipped guitars since the early 90’s. Since then
thousands of D-Tuna’s have been sold all over the world.
LONG LIVE THE KING! EVH!