I purchased these on Mercari. I used them at my wedding, and I'm listing them in the hopes that someone else can use them at their wedding... There are 12 sets, with AB on the front and back, and CD on the front and back. They are color-coded in red, blue, green, and yellow. The colors and letters are printed on construction paper, cut into circles, and attached to paper straws. 【Size】 Total length: 21.3cm Circle diameter: 9cm