D'Addario Limited Edition Tin - 4 Sets of EJ17 Acoustic Guitar Strings with Micro Headstock Tuner 4 sets of the renowned D'Addario Phosphor Bronze acoustic guitar strings in the popular Medium gauge EJ17. D'Addario Micro Clip-On Tuner for precision tuning on a wide array of instruments. Custom bundle comes shipped in collectible D'Addario branded tin.