Rainbow in the dark / Button

With changing of the times, the blind pays more and more attention to their dress now, we print braille on clothing buttons so that blind people can read the word which stands for the color of the dress, then they can pair up clothes by themselves. What is more, they will enjoy the time pairing up clothes and get satisfaction psychologically at the same time.
Clothing buttons with braille like the rainbow in the dark, making the word of blind people more colorful.