Feature: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information; 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed. 3.It is made of metal and plastic. 4.Pre-wired, No Soldering Required Installation. 5.Pickup senses the microvibrations of a soundboard. 6.Fit for guitar,violin,mandolin. Remove the plastic film from the back of the transducer to expose the adhesive. Color:Red and Black Brand name: Material: Metal and plastic Dimension:100 x 2.3cm/39.37 x 0.91inch(L x copper diameter) Weight:42g Note: It includes 3 potentiometer and 2 pickup sheets Package include: 1 x Pickup Piezo Transducer |