High-Quality Material: Made from premium felt, these washers offer excellent durability and resilience, ensuring long-lasting use and consistent performance. for Trumpets: Designed specifically for trumpets, these pads provide a snug fit and easy installation, making them ideal for both amateurs and professional musicians. Enhances Sound Quality: By providing a tight seal and reducing friction, these felt washers help in enhancing the sound quality of your instrument, ensuring clear and vibrant tones. Value Pack: The set includes 100 pieces,looking to maintain multiple trumpets at an affordable price. Essential Replacement Part: A must-have for regular maintenance, these pads prevent wear and tear on your trumpet, extending its lifespan and performance. Diameter: 14mm Inner diameter: 6mm Thickness: 3.6mm (The product appearance and printed words depending on the batch, but this does not affect use) Color: White Material: Felt Package Contents: 100 * Felt Pads 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.