Verdi Set of 3 Plus One Tuning Forks Unweighted Verdi Tuning Forks Set - C128, C256, A432, 512 Hz New, American made, fast shipping, Aluminum, non-rusting, non-tarnishing The Tuning Fork set comes with a lightweight carry bag.. Each fork is in plastic wrap. The set weighs 9.3 oz, the largest (lowest hz) fork (C128) is 10 inches long Each tuning fork is engraved with its Hz. Fast shipping, best quality, this set will last many years with proper care.