marsch smart Smartphone holder for trumpet, flugelhorn and cornet, for mouthpipe diameter 12,5 - 14mm, clamping range up to 95 mm mobile phone width, square brass rod 4 mm in brass nickel plated and 270 mm long, swiveling 360 degrees in horizontal direction, swiveling 85 degrees in vertical direction, suitable for all instruments with standard marching fork holder (square), for flugelhorn please use universal version