Features:<br />High quality aluminum alloy material, industry standard, clinical grade, aggravating nerve / sensory regulating fork, used to evaluate hearing and vibration.<br />Non magnetic, corrosion-resistant aluminum alloy structure, light weight and durable.<br />The extended 2 inches (about 58mm) handle turns smooth aluminum for bone conduction testing.<br />Equipped with a silicone hammer as a percussion tool.<br />Comes with a soft pouch to protect the tuning fork.<br />Suitable for ear picker, ear picking teaching, hearing test, etc.<br/>Specifications:<br />Color: Gold / Silver (Optional)<br />Size: Small / Large (Optional)<br />Material: Aluminum alloy<br/>Small:<br />Frequency: 128Hz<br />Item Length: 215mm / 8.46in,<br />Item Weight: 99g / 3.49oz<br />Package Weight: 127g / 4.48oz<br />Package Size: 29 * 5 * 2cm / 11.42 * 1.97 * 0.79in<br/>Large:<br />Frequency: 64Hz<br />Item Length: 245mm / 9.65in<br />Item Weight: 104g / 3.67oz<br />Package Weight: 132g / 4.65oz<br />Package Size: 33 * 5 * 2cm / 12.99 * 1.97 * 0.79in<br/>Packing List:<br />1 * Tuning Fork<br />1 * Hex Wrench<br />1 * Rubber Hammer<br />1 * Storage Pouch