There are as many colors as there charities and this is one of several by Koola Design to help you support your chosen good cause. All the ribbons are the same size and position so that you change to a different good cause whenever you like whilst keeping your avatar clean and clear. For a list of ribbons and what they each represent, visit http://bit.ly/8UBcTR For more ribbon twibbons, visit my profile page at http://twibbon.com/kooladesign