Handmade bottom cap made by BRAKUL. Used for about 3 months. The material is copper, with a pink gold-like color, and it looks cute as an accent when attached to a silver instrument. Retail price: ¥19,800 The outer circumference uses hammering and heat-treated brass and copper to adjust the hardness and acoustics. ・Copper Large Uses copper on the outer circumference. Produces a warm, deep sound like gold brass. Compatible Manufacturers ■YAMAHA ・For normal use (YEP642, etc.)