This humbucker open ceramic magnet guitar pickup with black umbrella-head screws fits for double humbucker guitar. With super-high output, it fits for Punk Metal or other heavy metal rock style. 12pcs of adjustable umbrella-head screws offer you the convenience to adjust the timbre. Meanwhile, the open design make the output volume clear and bright. Specification: Material: Metal and Plastic H represents Double Coil, O represents big holes on both sides, C represents ceramic magnets Pin: umbrella SHCS adjustable pin Magnet: Ceramic magnets Resistance: N: 7.2 ± 0.3K; B: 15 ± 0.5K Inductance: N/B:3.5H/7H Neck Pickup hole spacing : 50mm Bridge pickup hole spacing: 52mm Cable: Four Conduct with Shield Pakcage Include: 1 x Pair of Guitar Humbucker Pickup 4 x Mounting screws 4 x Spring Note: The hole is towards the bottom of the guitar, and the direction of the neck and the bridge should be the same. Note: The color of the item may vary slightly due to photography and your own computer