Note: (1) Avoid long time high temperature, exposure to sunlight, rain, and soaking. (2)Avoid contact with sharp objects, rough objects, corrosive substances, oil and so on. (3) Please make sure to make sufficient effort to prevent moisture, mildew and dust for long term display and collecting. (4)If there are stains on the surface of the product, it is recommended to wipe it gently with a damp soft cloth. Do not clean with alcohol, lighter oil or other solvents to prevent discoloration or damage to the materials.