Baseline® Rydel-Seiffer Tuning Fork (64 and 128 cps) Evaluate hearing and vibratory sensation. Non-magnetic, corrosion-resistant aluminum alloy construction for light weight and durability. Rydel-Seiffer, 64 and 128 cps. Product Specifications BRANDBaseline® MANUFACTURERS PART NUMBER12-1472 LENGTH INCHES9 WIDTH INCHES2 HEIGHT INCHES1/2 WEIGHT LBS0.3 COLOR FINISHAluminum CONSTRUCTIONAluminum Alloy DESCRIPTIONRydel-Seiffer Tuning Fork STYLESpecial TYPETuning Forks PACKAGE QUANTITY1 FREQUENCY64, 128 cps