our unique semi-tone mechanism, which is free from all possibility of rattle and yet fully and easily adjustable. The semi-tone levers are made entirely of alloy steel, cast gun metal and stainless steel (this is to ensure no loss of tone and longevity of the mechanism). The string contact point is hand polished to ensure minimal string wear. With an easy to use single finger flip-action and a positive ‘on’ position which means no unnecessary fumbling and perfect semi-tones every time.