Features: Multifunction trombone and trumpet maintenance tool combines water key valves and spit valves for efficient moisture removal, crafted from durable brass to ensure corrosion resistant performances. Precisions engineered with ergonomic design for single press drainage operations, featuring reinforced metal components that withstand frequent use without wear or tear. Ideal for both novice musicians and professional brass player seeking instrument care accessories to maintain playabilitys between rehearsals or performances. Essential during practice, orchestra rehearsals, or live concerts to prevent moisture buildup in slide tubes and valves casings, preserving acoustic claritys. Compact brass instrument accessory easily stores in music cases, offering quick access hygiene management for trombones and trumpets to extend equipment lifespans. Specifications: Material: Metal Size: Approx. 2.36x3.15inch(6x8cm) Package Includes: 1x Exhaust valves note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.