The tuning fork check in distinguishing nature of deafness - sound transmission deafness, or sensorineural deafness.When using clamping the fork handle, with a soft rubber mallet or other soft elastic body percussion, that can occur sound waves.Convenient to use.perfect for doctors, nurse and health professionals etc.Used to test patient hearing as well as vibratory sensitivity in cases of nerve damage.Colour:silver + wood colorMaterial:Aluminum alloy + woodPackage Contents:6 * Tuning Fork1 * Tuning Fork HammerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.