Compatibility: Fits USA Fender Performer, Special, Highway, Standard, Professional I, Professional II, Professional Classic, Deluxe, Elite, Ultra, Ultra Luxe & Mexican Fender Standard, Player, Player II, Player II Modified, Player Plus, Contemporary, Modern Player, Deluxe SSS Strat guitars with a standard 11-hole layout. Occasionally, some holes might need to be redrilled for a perfect fit. The back is equipped with EM shielding aluminum foil for effective electronic insulation. SSS Neck/Middle/Bridge Pickups: Magnet: Alnico 5. Bobbin Material: Plastic plate. Resistance (Ohms): 5.6K/5.6K/6.8K? ; Inductance (Henries): 2.2H/2.2H/3.0H. It maintains consistency and balance in tone, especially when switching pickups, resulting in smoother and more natural tonal transitions. Resistance Tolerance: The resistance values can fluctuate due to changes in temperature and humidity, typically increasing in hot and dry weather and decreasing in cold and humid conditions. In extreme situations, the tolerance range for the resistance may become larger, with the marked DC resistance varying by up to ±500? Due to environmental temperature differences. Please peel off the plastic protective film before use.