Wittner Metronome Taktell Super-… Wittner Tuning Fork A´ 440 HZ, 105mm long, Ø 3,6mm, without plastic cove Item No. 920 Manufacturer Wittner Plastic cover for tuning fork … Wittner Tuning Fork A´ 440 HZ , 105mm long, Ø 3,6mm, without plastic cover × Wittner Tuning Fork A´ 440 HZ, 105mm long, Ø 3,6mm, without plastic cove