The Trombone Accessories are designed for easy installation and are suitable for most trombones. The set features a secure and snug fit with its slip-on design, providing excellent grip during use. The soft cushion valve reduces key noise and offers a more comfortable playing experience. The rubber feet provide stable support and prevent the trombone from sliding or getting damaged.Features:- Color: Black- Material: Rubber- Size: 1.10 x 1.10 x 0.40 cm / 0.43 x 0.43 x 0.16 in- Hole Diameter: 4 mm- The installation process is simple and straightforward, making it easy to use.- This product is compatible with most trombones, ensuring versatility and convenience.- The slip-on design ensures a secure and snug fit, preventing any unwanted movement or slipping.- The soft cushion valve helps reduce key noise, providing a smoother and more pleasant playing experience.- The accessory makes cleaning and maintenance easy, ensuring that your instrument stays in top condition.Package: 5 x Trombone Rubber Feet