Phone strap
A phone strap, cell phone strap, or mobile phone strap, was originally a string or loop to help the user hold their cell phone, which was invented and became popular in Japan which is called a "keitai strap" (携帯ストラップ) in Japanese. Phone straps have now become a cultural phenomenon beyond their basic utilities, and they may be decorated or themed with famous characters such as animation heroes or Hello Kitty, or have additions to change the shape or add some more functions. The phone strap is common in Japan and neighboring countries in far-east Asia including China, Taiwan, Korea, and Hong Kong. It is slowly becoming more known in North America (especially Mexico) and Europe.