The industry standard tool for evaluating hearing and vibratory sensation. Baseline 12-1467 Tuning Fork Clinical Grade Weighted 256 cps Baseline Tuning Fork features: • Non-magnetic, corrosion resistant aluminum alloy construction • Weights 1/3 of a comparable steel tuning fork • Produced from a 3/8" x 1" bar stock for superior performance and consistent frequency • Extra long 2" handle of turned smooth aluminum facilitates bone conduction tests