Are you looking for a professional, yet fork and hammer kit? Are you in search of a sturdy, trustworthy tool that can be used to do multiple jobs at once? , ! Our fork and hammer kit must meet your needs. Features - Color: Beige. - Material: Wood, steel, rubber. - Size: Approx. 20.00X15.00X9.00cm/7.86X5.89X3.54in. - Acoustic Frequency: 512Hz. - Multi-functional and versatile, can be used as a physical acoustics experiment equipment, a home decoration, a kid toy, etc. - The fork comes with a resonance box and a hammer with rubber head. - Insert the fork handle into the base of the resonance box and hit the fork with the hammer, which can sound waves with a frequency of 512 cycles per second. - Don't knock the side of the table or use hard objects to knock, it may a lot of side waves. - Widely used for sound therapists, physics labs, science class sound experiments. Package list: 1 x fork on the Wooden Base 1 x Mallet