FITS FOR: The pickup is suitable for many kinds of acoustic inst ents, such as guitar, ukulele, mandolin, banjo, etc.GOOD SOUND: It is able to eliminate interfering external sounds and not be influenced by sound reflections from nearby objects. So it can mit good sound quality.STICK PATCH DESIGN: With 3 stick patch ducers, it is very easy to install and you can stick it onto the inst ent to minimize the damage to inst ent body.NICE AUDIO JACK:The audio jack can replace the end pin and install the strap.Condition: 100% new Weight: Approx. 36gInstallation Method1. Remove the tail nails and widen the tail holes to the appropriate width (about 1-1.5cm in diameter)(without tail nails, find the right position to open the hole)2. Stick the patch to the position that is most acceptable for vibration, usually below the bridge3. Attach a fixing pad to the appropriate position and fix the long connecting wire to the fixing pad with a fixing strip.colour:blackMaterial:Metal + ABSsize:Cable Length: Approx. 60cm / 23.6inJack Size: 6.35mmPickup Diameter: Approx. 3cm / 1.2in Package Contents:1 x Pickup Piezo1 x Cable Tie1 x Block Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.