Preserved hydrangea in mocha coffee color Length approximately 30cm, diameter 20-22cm The Hydrangea flowers undergo a rehydration process by being placed in a mixture made from glycerine and other plant elements. This liquid gradually rises through the trunk until it completely substitutes the sap. After a few days, the process is complete, and the plant is ready to be used. Preserving, or stabilizing, is a far more expensive process then processing dried flowers. The final result is a flexible flower with a completely natural appearance. The preservative keeps working for months, or even years. Because of the durability of these kind of products it is a perfect match for gorgeous everlasting arrangements. —Important note before ordering——- As this item is bleached & preserved, it is more delicate and fragile than other preserved flowers. They may be flatten slightly during the transport. Handle with care Package with polybag/wrapping paper.