Made with non-withered hydrangea and dried flowers size: 12 * 18 cm Care and preservation: The dried flower species will fade to varying degrees with time, and the preservation period can be more than half a year. The non-withered flower is specially processed, so it can be stored for six months to three years. There is no fragrance and pollen after processing, so you don't need to worry about allergies. 1. Avoid placing under high temperature and humidity, direct sunlight or strong lighting. 2. If dust accumulates on the flower, use a soft brush or a hair dryer to remove it.