Fits American or Mexico Fender Stratocaster which has 3 or 4 mounting-screw holes for humbucking pickup. If you want to fit other guitar models, you may need to modificate this pickguard
2 single coils and 1 bridge humbucker routine. Humbucker slot is radius corner shape, so you do not need a pickup ring for this pickguard, will fit most open pickups. 11 mounting-screw holes, 4 mounting-screw holes for humbucking pickup