How long can a fragrance bookmark last?

The fragrance lasts for more than one year. Guangzhou Hezhenrong Technology Co., Ltd. released the paper bookmark product introduction of the special fragrance of the 12-constellation fragrance bookmark set, which mentioned that the scratch fragrance bookmark is wrapped in microcapsules, which will emit fragrance for more than one year after rubbing or heating by hand. The incense stick does not contain substances harmful to human body, and meets the safety standards of toys and food packaging.