Tree-Free Greetings ECOnotes Thank You Card Set, 4 x 6 Inches, 12-Count Cards with Envelopes, The Great Thing (94652) 12-count 4 x 6 inch thank you cards and color-coordinated envelopes Vibrantly printed inside and out on 100 percent post-consumer recycled paper Paper made with wind power, processed chlorine free, green-E certified Sustainableand made in the USA Original design by Duirwaigh Studios