This 10-pack of hanging car aromatherapy diffuser bottles is designed for users who want a convenient supply of refillable fragrance pendants. Each bottle is made of glass with a wooden cap, and the set is intended for use with essential oils, perfume, or other fragrance liquids. The bottles are empty and do not include essential oils or perfume. The square shape and clear glass give the bottles a simple, clean appearance, and the wooden cap is intended to absorb and release the fragrance gradually. An extra plastic plug is included to help seal the bottle better and reduce leakage. The bottles can hang from a rearview mirror, window sill, or other suitable location using the included string, and they can also be placed in a home, office, or bathroom. The compact size makes them easy to store and carry. To use, add fragrance to the bottle, allow the wooden cap to absorb the liquid, and hang the bottle in the desired spot. This set is a practical choice for people who like to change fragrances regularly or who want to prepare multiple hanging diffusers for different vehicles or rooms.