- Bill Saragosa Line - Consists of a steel helix, which is welded to a hollow hemisphere. The Helix Bowl can be struck with the metal beater by moving the instrument to create a deep, echoing wah-wah effect, similar to the MEINL berimbau - Material: Special steel alloy - Colour: Black Nickel - Includes metal beater EUR 66.00 - See more - Buy online