G.S Portable Tuning Fork Music Tuning Fork Set 4pcs Full Black 128HZ 256HZ 512 HZ 1024HZ Top Quality

Industry standard, clinical grade, weighted neuro/sensory tuning fork for assessing hearing and vibration sense. Non-magnetic, corrosion resistant aluminum alloy construction makes it lightweight and durable. G.S Portable Tuning Fork Music Tuning Fork Set Full Black 128HZ 256HZ 512 HZ 1024HZ Best Quality Full Black. Same as picture