A440 Hz tuning fork material: the tuning fork is made of quality stainless steel, polished and plated A440 Hz tuning fork size: total length 4.85 inch, 0.75 inch width, 0.16 inch diameter, small and easy to carry the tuning fork Precise frequency: the tuning fork can deliver clear tone at A440, longer sound and accurate tuning, great for tuning guitar, ukulele, violin, piano and keeping them in tune Widely application: the tuning fork can be a handy tool for tuning stringed instruments, but also suitable for singing practice, medical healing, hearing detection, children's teaching and stress relieving Approprite crowd: the tuning fork is suitable for musicians, teachers, or science lovers and can apply for home and travel Product Feature: Precise frequency: The tuning fork can deliver clear tone at A440, longer sound and accurate tuning, great for tuning guitar, ukulele, violin, piano and keeping them in tune. Widely application: The tuning fork can be a handy tool for tuning stringed instruments, but also suitable for singing practice, medical healing, hearing detection, children's teaching and stress relieving. Specification: Material: stainless steel, polished and plated Size: fork length: 3.35 inch, handle length: 1.5 inch, total length: 4.85 inch, width: 0.75 inch, diameter: 0.16 inch Color: as pictures shown Weight: 0.029 kg Package includes: 1 x Tuning fork 1 x Cleaning cloth 1 x Velvet bag .