1FOR 4 STRING RESONATING GUITARS: This guitar tail is specially designed for 4 string resonator guitars and is highly compatible with guitar strings 2HIGHLY CONTROLLABLE: The tailpiece allow the trill to be highly controllable within range of motion, requiring only a small amount of force to operate 3INCREASED PITCH: The guitar bent tailpiece can improve pitch, volume, and persistence, making string changes simple and quick, very convenient 4APPLICABLE SCENARIO: 4 string resonator guitar bent tailpiece is suitable for all wood or steel resonator guitars, useful and practical, provide great convenience for your playing 5SMOOTH AND WEAR RESISTANT: Metal guitar bent tailpiece is made of zinc alloy material, possess good corrosion resistance, smooth surface, good room temperature mechanical properties and wear resistance