C 256 Hz Tuning Fork Unweighted<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Tune to Middle C at 256 Hz- the Verdi Scientific Pitch- use this unweighted tuning fork </span></li><li><span class="a-list-item"> For musical tuning， healing tuning， science lab， calibration， sound experiments， Teachers love this one! </span></li><li><span class="a-list-item"> Engraved "C 256"， made from non-rusting， non-tarnishing， non-magnetic aluminum alloy and will produce a pure tone even after many years of use with proper care. </span></li><li><span class="a-list-item"> FREE SHIPPING in the USA- Aluminum 2 pronged naturally vibrating tuning fork.weighs 2.4 oz， 8.25 inches long. Carry pouch included! </span></li><li><span class="a-list-item"> C=256 Hz Tuning Fork， best quality， fast shipping， Aluminum， 2 pronged naturally vibrating tuning fork </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/11OP7F9z5rL.jpg" noproxy>