Handy Needle Vibrator

They are also referred to as immersion, poker or needle vibrators. They essentially include an energy unit and a long flexible tube on the top of which a vibrating head is attached. Power is furnished by means of an electric powered motor, compressed air or petrol engine.A vibrating motion can be oscillating, reciprocating, or periodic. Vibration can also be either harmonic or random. Harmonic vibration occurs when a vibration's frequency and magnitude are constant.The higher the gauge, the smaller the hole. Needles come in various gauges and lengths. The length of a needle is listed after the gauge number. For example, 25G ½ refers to a 25 gauge, ½ inch-long needle.