Matt Nolan creates his Gongs from a small number of carefully selected metal alloys. These include certain specific Bronzes and Stainless Steels. Nickel Silver (of which there is a number of subtly different alloys) also makes wonderful sounding Gongs. He designs Gongs in the expected round shape and also in other, more exotic shapes. The shape, the metal, the weight, the hammering and the surface textures all contribute to the different sound world of each gong. *Every Matt Nolan Custom Gong is a unique, hand made creation and may vary from the photo and video shown in this listing.