Adjustable double fixed slide rails with a gimbal width that can be tuned to fit different wind instruments, providing secure and stable maintenance for trumpet, trombone, and French horn Three sturdy support rods that offer reliable support for tools and instruments during repairs, enabling you to work on a variety of wind instruments with confidence Mounting bracket constructed from hardness tool steel, delivering wear resistance and impact resistance while resisting deformation and rust for long service life Polished, gloss finish that looks professional and protects instrument surfaces, ensuring no damage to the exterior of trumpet, trombone, or French horn during handling and repairs Use scenarios In a professional or by an instrument technician: quickly adjust the gimbal width to accommodate trumpet, trombone, or French horn, secure the instrument with the slide rails, and use the support rods to hold tools and parts during valve, slide, or alignment work In a music studio or school band room: rotate between instruments for routine maintenance and inspections, thanks to the adjustable rails and durable mounting bracket, enabling efficient upkeep of multiple wind instruments with minimal setup At home for periodic cleaning and lubrication: set up on a work surface, adjust to the appropriate width for your instrument, and rely on the three support rods to stabilize tools and components during your maintenance tasks