Material: Aluminum Feature: 1> Made of aluminum with flexibility and open end, can be adjusted according to your needs easily. 2> Made of aluminum with flexibility and open end, can be adjusted according to your needs easily.3> Made of aluminum with flexibility and open end, can be adjusted according to your needs easily.Suitable for daily use, party, festival, Chirstmas, Halloween, etc. How to use: plait your hair in small braid, then open two ends of hair ring and place your hair into it, finally close the ring with fingers. Size: Spring Part 4x1cm,Extended to 21cm Long,Charm 1.7x1cm