There is a protective film on the pre-wired guitar guards to prevent scratches and damage. Remove this protective film before installing the pickguard on your guitar. Neck humbucker: 7.5K (3.75K for split coil). Bridge humbucker: 15K (7.5K for split coils) Hole spacing N: 50 mm M: 50 mm B: 52 mm Humbuckers with four wires: black for hot, green for ground, red and white for split coils Materials: PVC sheathing and copper coil pickups. Weight: 700 grams per set. 1 x 3-ply guitar guard. 3 Alnico 5 humbucking pickups. 1 x 5-way switch. 3 potentiometers (1 volume, 2 tone, brass shaft). 4 single cutaway switches. 1 x 400V/200V capacitor. In addition, the two single-cut toggle switches bring new functions as follows. For example, toggle on + 5-way switch in bridge position = neck and bridge pickups work together.