Set of 8 Tuning Forks, designed for Physics Experiments. Scientific Pitch (C4 = 256Hz) Set includes Mallet with soft and hard end Designed for Physics experiments and actual frequencies can be +/- 5% stated Hz Perfect tool for sound wave physics experiments Set comes in a wooden case, with foam liner fitted to secure forks and mallet in place. Premium aluminum physics tuning fork set. This set includes mallet with both soft and hard ends for activating the sounds of each fork. Set includes a wooden protective case, with a fitted foam lining. Tuning forks included: C (256) D (288) E (320) F (341) G (384) A (426) B (480) C (512) These tuning forks are designed for Physics experiments and actual frequencies can be +/- 5% stated Hz.