Highly sensitive thermal beads change color with the slightest difference in temperature. I can string them in any combination! These bracelets are very customizable. There are two base colors, blue and pink. ALL the beads in each color base change to the same colors according to temperature but, the differences in bead size might cause a slight variation because of how they lay on your arm. There are also multiple "special" beads that can be placed in any bracelet. You can see them in the center of most of the bracelets shown here. Inquiries are welcome.