Backpacks, fine-tuning, and horse bridges are all available.1. The box is not only a necessity for transportation and packaging, but also can prevent vibration, maintain temperature and humidity, ensuring the longevity of the piano. The original box is the same shape as the one shown in the picture, with one side larger than the other.

   2. The bow, which has a screw at the back to adjust the tension, can be used to pull the strings when the horsehair on the bow is rubbed with rosin, causing the strings to vibrate and produce sound.

   3. Rosin Rosin is used to increase friction, if there is not enough rosin on the bow hair, it will slip on the string, and the string will not vibrate to produce sound.