Gon Bops / Talking Shaker GON-PSHPSPR (Gon Bops / Talking Shaker) This shaker allows you to freely change the pitch by pressing on the cowhide with your fingers. Playing while freely changing the pitch adds color to your band's sound. The marks on the back were there when purchased and do not affect the sound quality or volume. Set of 2 Retail Price: 5390 yen (tax included) Diameter: 6cm Height: 4.5cm