Wah Wah Tube in A, Silver (Item Code: WWTSA) This silver colored wah wah tube produces the pitch of A in a clear tone with incredible sustain. The tone may be modulated by 'thumbing' the sound hole. A great "ambient" percussion sound to surprise and complement the other musicians in your group. Made of aluminum, approximately 13 inches in length and 2 inches in diameter. Includes a rubber mallet.