This aluminum tuning fork is scientifically tuned to the absolute concert pitch of middle C at 256 Hz. The two-pronged, plain shank design resonates at a specific constant pitch when struck against a surface, emitting a pure musical tone once the higher overtones fade out. The durable aluminum construction is built for long-term use. The tuning fork is suitable for tuning musical instruments, calculating frequency in scientific experiments, studying the principles of sound waves, and demonstrating acoustic resonance in physics classrooms.