High-hardness tool steel construction provides excellent wear resistance, stability, and resistance to deformation and rust, ensuring reliable performance during instrument maintenance. Adjustable support rods with two fixed sliders let you tailor the height and width to fit a range of brass instruments, making maintenance tasks easier and safer for the instrument. Material: steel and adhesive. The mount is built to withstand typical repair work on brass instruments, offering a sturdy, long-lasting support during service. Durable and stable design helps protect instrument finishes and keeps tools and parts from shifting during work. Compatibility: suitable for common brass instruments in workshop or home settings, including trumpet, trombone, French horn, and tuba. Use scenarios: - Secure a trumpet or trombone during cleaning, valve maintenance, or lubrication to minimize handling and risk of damage. - Hold the instrument steady during replacement of components or minor adjustments, such as slide alignment or mouthpiece service. - Support during repair tasks at the bench, including alignment, light soldering, or reassembly, reducing movement and improving accuracy.