Description: This pickup available for 39" to 42" classic folk guitar, a great assistant to shape and amplify sound Excellent bass mid-range response and soft acoustic tone Magnetic sensor captures vibrations quickly Low profile, high impedance design, needs no battery No need to drill, easy installation and removal Strap end-pin jack with 6.35mm outlet Material: Copper & Plastic Color: Black Specification: Suitable for : 39" to 42" folk guitar (sound hole >=10cm / 4in ) Cable length: 80cm / 31.5in Pickup size: 10.5*2*2.8cm / 4.1*0.78*1.1in Product weight: 84g / 3oz Package size: 12*10*3cm / 4.7*3.9*1.2in Package weight: 158g / 5.6oz Package Includes: 1 * Sound Hole Magnetic Pickup Note: Due to manual measurement, there may be 1-2mm error in size