HHH Pre-Installed Guitar Strat Guard Kit: includes 11 pre-drilled holes to simplify the installation process and ensure reliable installation. PICKUPS: 3 Alnico 5 humbucking pickups, known for their powerful and balanced sound, deliver warm, dynamic tones for a wide range of musical styles. Coil Split: Experience versatile tones with the electric guitar coil split switch, which allows you to switch between humbucker and single-coil sounds for added flexibility. Muffler Switch: The pre-installed guard set comes with a stainless steel muffler switch, making it easy to achieve stuttering effects and enhance musical expression. COMPATIBILITY: For Fender USA/Mexico Stratocaster Standard Modern Style: designed specifically for these models to ensure a perfect fit and seamless upgrade.