C-GUARD Trumpet Protective Bag Height: approx. 220mm Width: approx. 640mm ■Features of C-GUARD This product uses a fiber material that prevents silver from tarnishing and has excellent deodorizing properties. *It is most effective when sealed, making it ideal for long-term storage of instruments that you no longer use. *The deodorizing function has been improved compared to deodorizers that have been used previously. ■Mechanism that prevents discoloration The silver oxide incorporated into the fibers of this product undergoes an ionic reaction with sulfur-based odorous substances in the air that cause discoloration, It prevents silver from tarnishing by quickly sealing off the causative substances within the fibers. (The contained material will not re-emerge.) ■Material: 13% acrylate fiber (contains silver oxide), 87% polyester ■ Precautions for use: Although it depends on the environment, the effectiveness of the product will decrease as the discoloration-causing substances are absorbed into the fibers. We recommend replacing it every 2-3 years.・This product will not lose its effectiveness even after washing, but as it is a dark dye, the color may fade. Do not wash with other items. (Ordinary household detergent is fine.) - Do not use to wipe the surface of the instrument. - It does not have the effect of restoring discolored silver to its original state. *May not be usable depending on the shape of the instrument.