Soundhole Prewired Active Pickup 4 Strings For Cigar Box Guitar Parts Accessories Description: 100% Brand New and High Quality Color: 15 #16 #17 #18 #20 #21# as picture shown Material: Shell: ABS Sound Board: Celluloid Coil: Copper Knob: Plastic Small and exquisite, convenient to carry. With ABS material in the shell, celluloid in the sound board. Matched with copper coil, two plastic knobs and two mounting screws. High quality guarantee, excellent durability. Suitable for folk guitar, acoustic and electric guitar Size: 120x30x2 2mm/4.72x1.18x0.87" (Approx.) Quantity: 1pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included: 1 x Sound Hole Magnetic Sensor 2 x Mounting Screw 2 x Knob (Other accessories demo in the picture are not included.)