1. Piano Tuning Kit: 16 pieces piano tuning tools, It contains Tuning Hammer, Mutes with Handles,Mutes, Temperament Strip;Tweezers; Fork; Screwdriver; Clip, Suitable for both beginners and professionals. 2. The tuning wrench: Which has a female threaded hole at one end for connection with the connector, another end is an inner octagonal hole. 3. Piano average temperament stop band: Length: 112cm, it can complete the stop of the twelve notes of the reference group at one time, which is very convenient to use. 4. A440HZ tuning fork chrome-plated steel round tuning fork is high , small pitch change, and long pronunciation duration. 5. Sound-proof clip: Made of environmentally friendly nylon material which is the sound-proof tool used in the tuning of the upright range of the upright piano. Note:If the colors of accessories are different, it not affect the application. Color:As Shown Material:Metal Package Contents: 16 * Piano Tuning Kit Only the above package content, other products are not included. Note: Light reflection 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.