Features: Brand new and high quality Achieve optimal sound quality with this set of piano tuning accessories. Crafted from wool, these small felt rings provide cushioning between piano parts, reducing noise and restoring the authentic tone. Convenient and easy to install, these piano tuning accessories feature thickened felt for a significant improvement in sound. It is very suitable for professional piano tuners, music students, teachers, and piano enthusiasts who demand precise tuning. Perfect for various occasions such as piano concerts, music schools, music studios, and home piano practice, these accessories help you adjust that piano's pitch and enhances musical expression. Experience the durability and reliability of these piano tuning accessories. Unlock your musical potential and enjoy an enhanced piano playing experience. Specifications: Material: Woolen Cloth Color Options: 2 Colors are Available as Shown in the Picture. Package Weight: approx.7g Size: approx.1.2x0.2cm/0.47x0.07in (More Size Detail, Please See Photo.) Package Includes: Set of 90Pcs Piano Felt Tuning Regulating Washer note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!