Yany BooStar Pink Gold Plate For YAMAHA. Retail price: ¥14,300 (tax included) Used 2 or 3 times. There are traces of the price sticker having been removed from the product. The neck screw "Yany BooStar" boosts resonance and produces a rich tone. By attaching it, a moderate resistance is created, and the flow of breath becomes smooth. The sound is unified across the entire range, and a voluminous tone is obtained. You can also change the playing feel and sound quality with the combination patterns of the three screws, allowing you to use it according to the song or music scene. Two types of parts, B and C, with different weights, can be joined to the basic screw A. By combining them, the playing feel and sound quality can be further changed. It can be used according to the song or music scene.