Features: 1.The wire shaft is protected by wax wire,enhanced string protection. 2.The three-string guitar pick-up with circuit is suitable for cigar box guitar. 3.100% brand new and high-quality. 4.It is made of premium material,durable and has long service life. 5.It is stable and has great performance while using.specification: The wire shaft is protected by wax wire,enhanced string protection. The three-string guitar pick-up with circuit is suitable for cigar box guitar. 100% brand new and high-quality. It is made of premium material,durable and has long service life. It is stable and has great performance while using. : Material:Maple Alnico Copper Pickup Impedance: 4.5Kohm Polar spacing: ~ 7/16 "center to center (~ 11 mm) Total pole propagation (center to center):7/8 "(22 mm) Pickup Height:11/16 "(17 mm) Top core board size:1-15/16 "* 5/8"(50mm*17mm) Size of bottom core plate:2-9/16 "* 1" (63mm*25mm) Package List: 1*Pickup 2*knob Hat 2*Screw