This is a traditional Chinese opera hair accessory, known as the "Peking Opera Danjue Blue Phoenix Headwear", which is made of blue feathers and beads.

The design of this hair accessory is inspired by the female roles in Peking Opera, who usually wear gorgeous costumes and various exquisite hair accessories on their heads.

The color of this hair accessory is very bright, giving people a sense of nobility and elegance.

Its design is very delicate, with every detail carefully crafted, showcasing the charm of Chinese traditional culture.