Description Sound and vibrations is an important physics concept for students, tuning fork experiments are great visual examples of how vibrations cause sound waves. Allows students to listen,experiment, and discuss different kinds of sounds, that students will enjoy learning. Features - Color: As Shown.- Material: Wood and Metal.- Size: Approx. 31 x 26 x 5 cm / 12.2 x 10.24 x 1.97 inch.- Frequency: 256 Hz.- Made of wood and metal material, safe and durable.- To demonstrate resonance and interference, such as the sound conduction of vibration, interference, waves, frequency, and amplification of sound.- Suitable for family and school science experiments, instrument equipment.-Teach kids to tune their string instruments and help kids learn how to tune their instruments.-Allows students to listen,experiment, and discuss different kinds of sounds, that students will enjoy learning.Packing list: 1 x Tuning Fork with Wooden Resonance Box Knocker